78899365168 has 20 divisors (see below), whose sum is σ = 164626560448. Its totient is φ = 36415091520.

The previous prime is 78899365147. The next prime is 78899365177. The reversal of 78899365168 is 86156399887.

It is a junction number, because it is equal to n+sod(n) for n = 78899365097 and 78899365106.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 189661728 + ... + 189662143.

Almost surely, 2^78899365168 is an apocalyptic number.

It is an amenable number.

78899365168 is an abundant number, since it is smaller than the sum of its proper divisors (85727195280).

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

78899365168 is a wasteful number, since it uses less digits than its factorization.

78899365168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379323892 (or 379323886 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 70.

The spelling of 78899365168 in words is "seventy-eight billion, eight hundred ninety-nine million, three hundred sixty-five thousand, one hundred sixty-eight".