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78425878265 = 572240739379
BaseRepresentation
bin100100100001010001…
…0111110111011111001
321111102122010101220222
41021002202332323321
52241104011101030
6100010042425425
75444315652260
oct1110242767371
9244378111828
1078425878265
1130295400129
1213248802275
13751ac8cc37
143b1da9d5d7
1520901d23e5
hex12428beef9

78425878265 has 8 divisors (see below), whose sum is σ = 107555490240. Its totient is φ = 53777745072.

The previous prime is 78425878211. The next prime is 78425878291. The reversal of 78425878265 is 56287852487.

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 78425878265 - 212 = 78425874169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78425878198 and 78425878207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120369655 + ... + 1120369724.

It is an arithmetic number, because the mean of its divisors is an integer number (13444436280).

Almost surely, 278425878265 is an apocalyptic number.

It is an amenable number.

78425878265 is a deficient number, since it is larger than the sum of its proper divisors (29129611975).

78425878265 is a wasteful number, since it uses less digits than its factorization.

78425878265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2240739391.

The product of its digits is 60211200, while the sum is 62.

The spelling of 78425878265 in words is "seventy-eight billion, four hundred twenty-five million, eight hundred seventy-eight thousand, two hundred sixty-five".

Divisors: 1 5 7 35 2240739379 11203696895 15685175653 78425878265