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78488488488487 = 7111019331019331
BaseRepresentation
bin10001110110001010000110…
…011110011010111000100111
3101021220102111201021111210011
4101312022012132122320213
540241423411023112422
6434533040331111051
722350414625215610
oct2166120636327047
9337812451244704
1078488488488487
1123010865619880
128977717ba2487
1334a458186864c
141554c12546c07
159119ebb61077
hex47628679ae27

78488488488487 has 8 divisors (see below), whose sum is σ = 97855777855872. Its totient is φ = 61159861159800.

The previous prime is 78488488488467. The next prime is 78488488488521.

78488488488487 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78488488488487 - 27 = 78488488488359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78488488488395 and 78488488488404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78488488488467) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 509665509589 + ... + 509665509742.

It is an arithmetic number, because the mean of its divisors is an integer number (12231972231984).

Almost surely, 278488488488487 is an apocalyptic number.

78488488488487 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

78488488488487 is a deficient number, since it is larger than the sum of its proper divisors (19367289367385).

78488488488487 is a wasteful number, since it uses less digits than its factorization.

78488488488487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1019331019349.

The product of its digits is 210453397504, while the sum is 94.

The spelling of 78488488488487 in words is "seventy-eight trillion, four hundred eighty-eight billion, four hundred eighty-eight million, four hundred eighty-eight thousand, four hundred eighty-seven".

Divisors: 1 7 11 77 1019331019331 7135317135317 11212641212641 78488488488487