78304465875 has 64 divisors (see below), whose sum is σ = 131683264128. Its totient is φ = 41319936000.

The previous prime is 78304465849. The next prime is 78304465891. The reversal of 78304465875 is 57856440387.

It is not a de Polignac number, because 78304465875 - 2⁸ = 78304465619 is a prime.

It is a super-2 number, since 2×78304465875² (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 63 ways as a sum of consecutive naturals, for example, 31059615 + ... + 31062135.

It is an arithmetic number, because the mean of its divisors is an integer number (2057551002).

Almost surely, 2^78304465875 is an apocalyptic number.

78304465875 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78304465875 is a deficient number, since it is larger than the sum of its proper divisors (53378798253).

78304465875 is a wasteful number, since it uses less digits than its factorization.

78304465875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3385 (or 3375 counting only the distinct ones).

The product of its (nonzero) digits is 22579200, while the sum is 57.

The spelling of 78304465875 in words is "seventy-eight billion, three hundred four million, four hundred sixty-five thousand, eight hundred seventy-five".