78148677143064 has 128 divisors (see below), whose sum is σ = 218899756108800. Its totient is φ = 23040678435840.

The previous prime is 78148677143057. The next prime is 78148677143071. The reversal of 78148677143064 is 46034177684187.

It is an interprime number because it is at equal distance from previous prime (78148677143057) and next prime (78148677143071).

It is a super-2 number, since 2×78148677143064² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66).

It is a junction number, because it is equal to n+sod(n) for n = 78148677142986 and 78148677143004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 382891489 + ... + 383095535.

It is an arithmetic number, because the mean of its divisors is an integer number (1710154344600).

Almost surely, 2^{78148677143064} is an apocalyptic number.

78148677143064 is a gapful number since it is divisible by the number (74) formed by its first and last digit.

It is an amenable number.

78148677143064 is an abundant number, since it is smaller than the sum of its proper divisors (140751078965736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78148677143064 is a wasteful number, since it uses less digits than its factorization.

78148677143064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243313 (or 243309 counting only the distinct ones).

The product of its (nonzero) digits is 151732224, while the sum is 66.

The spelling of 78148677143064 in words is "seventy-eight trillion, one hundred forty-eight billion, six hundred seventy-seven million, one hundred forty-three thousand, sixty-four".