78158700396 has 72 divisors (see below), whose sum is σ = 231894309920. Its totient is φ = 21727512576.

The previous prime is 78158700383. The next prime is 78158700413. The reversal of 78158700396 is 69300785187.

It is a super-2 number, since 2×78158700396² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4181941 + ... + 4200588.

Almost surely, 2^78158700396 is an apocalyptic number.

It is an amenable number.

78158700396 is an abundant number, since it is smaller than the sum of its proper divisors (153735609524).

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

78158700396 is a wasteful number, since it uses less digits than its factorization.

78158700396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8382583 (or 8382578 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 78158700396 in words is "seventy-eight billion, one hundred fifty-eight million, seven hundred thousand, three hundred ninety-six".