78929161344 has 128 divisors (see below), whose sum is σ = 254128104000. Its totient is φ = 23917916160.

The previous prime is 78929161271. The next prime is 78929161369. The reversal of 78929161344 is 44316192987.

78929161344 is a `hidden beast` number, since 7 + 8 + 9 + 291 + 6 + 1 + 344 = 666.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1000089 + ... + 1076120.

Almost surely, 2^78929161344 is an apocalyptic number.

It is an amenable number.

78929161344 is an abundant number, since it is smaller than the sum of its proper divisors (175198942656).

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

78929161344 is a wasteful number, since it uses less digits than its factorization.

78929161344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2076243 (or 2076225 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The spelling of 78929161344 in words is "seventy-eight billion, nine hundred twenty-nine million, one hundred sixty-one thousand, three hundred forty-four".