78074923875 has 64 divisors (see below), whose sum is σ = 140127711360. Its totient is φ = 38377152000.

The previous prime is 78074923867. The next prime is 78074923897. The reversal of 78074923875 is 57832947087.

It is not a de Polignac number, because 78074923875 - 2³ = 78074923867 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3210261 + ... + 3234489.

It is an arithmetic number, because the mean of its divisors is an integer number (2189495490).

Almost surely, 2^78074923875 is an apocalyptic number.

78074923875 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

78074923875 is a deficient number, since it is larger than the sum of its proper divisors (62052787485).

78074923875 is a wasteful number, since it uses less digits than its factorization.

78074923875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24921 (or 24911 counting only the distinct ones).

The product of its (nonzero) digits is 23708160, while the sum is 60.

The spelling of 78074923875 in words is "seventy-eight billion, seventy-four million, nine hundred twenty-three thousand, eight hundred seventy-five".