78152257640676 has 48 divisors (see below), whose sum is σ = 184108726081280. Its totient is φ = 25800467535360.

The previous prime is 78152257640669. The next prime is 78152257640713. The reversal of 78152257640676 is 67604675225187.

It is a super-2 number, since 2×78152257640676² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10071445 + ... + 16054236.

Almost surely, 2^{78152257640676} is an apocalyptic number.

It is an amenable number.

78152257640676 is an abundant number, since it is smaller than the sum of its proper divisors (105956468440604).

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

78152257640676 is a wasteful number, since it uses less digits than its factorization.

78152257640676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26128084 (or 26128082 counting only the distinct ones).

The product of its (nonzero) digits is 237081600, while the sum is 66.

The spelling of 78152257640676 in words is "seventy-eight trillion, one hundred fifty-two billion, two hundred fifty-seven million, six hundred forty thousand, six hundred seventy-six".