78818165328 has 40 divisors (see below), whose sum is σ = 232701251008. Its totient is φ = 22519475712.

The previous prime is 78818165323. The next prime is 78818165341. The reversal of 78818165328 is 82356181887.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78818165323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117288601 + ... + 117289272.

Almost surely, 2^78818165328 is an apocalyptic number.

It is an amenable number.

78818165328 is an abundant number, since it is smaller than the sum of its proper divisors (153883085680).

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

78818165328 is a wasteful number, since it uses less digits than its factorization.

78818165328 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 234577891 (or 234577885 counting only the distinct ones).

The product of its digits is 5160960, while the sum is 57.

The spelling of 78818165328 in words is "seventy-eight billion, eight hundred eighteen million, one hundred sixty-five thousand, three hundred twenty-eight".