78506882666675 has 24 divisors (see below), whose sum is σ = 98569170169344. Its totient is φ = 62018732924960.

The previous prime is 78506882666581. The next prime is 78506882666699. The reversal of 78506882666675 is 57666628860587.

It is not a de Polignac number, because 78506882666675 - 2⁸ = 78506882666419 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 78506882666675.

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, 4889087 + ... + 13450536.

It is an arithmetic number, because the mean of its divisors is an integer number (4107048757056).

Almost surely, 2^{78506882666675} is an apocalyptic number.

78506882666675 is a deficient number, since it is larger than the sum of its proper divisors (20062287502669).

78506882666675 is a wasteful number, since it uses less digits than its factorization.

78506882666675 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18341779 (or 18341774 counting only the distinct ones).

The product of its (nonzero) digits is 9754214400, while the sum is 80.

The spelling of 78506882666675 in words is "seventy-eight trillion, five hundred six billion, eight hundred eighty-two million, six hundred sixty-six thousand, six hundred seventy-five".