78175872875 has 32 divisors (see below), whose sum is σ = 102741849600. Its totient is φ = 59224024800.

The previous prime is 78175872851. The next prime is 78175872889. The reversal of 78175872875 is 57827857187.

It is not a de Polignac number, because 78175872875 - 2²⁴ = 78159095659 is a prime.

It is a super-3 number, since 3×78175872875³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7164674 + ... + 7175576.

It is an arithmetic number, because the mean of its divisors is an integer number (3210682800).

Almost surely, 2^78175872875 is an apocalyptic number.

78175872875 is a deficient number, since it is larger than the sum of its proper divisors (24565976725).

78175872875 is a wasteful number, since it uses less digits than its factorization.

78175872875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13956 (or 13946 counting only the distinct ones).

The product of its digits is 61465600, while the sum is 65.

The spelling of 78175872875 in words is "seventy-eight billion, one hundred seventy-five million, eight hundred seventy-two thousand, eight hundred seventy-five".