78313574031 has 32 divisors (see below), whose sum is σ = 130198192128. Its totient is φ = 40677817440.

The previous prime is 78313574029. The next prime is 78313574039. The reversal of 78313574031 is 13047531387.

It is not a de Polignac number, because 78313574031 - 2¹ = 78313574029 is a prime.

It is a super-2 number, since 2×78313574031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78313574039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3297706 + ... + 3321368.

It is an arithmetic number, because the mean of its divisors is an integer number (4068693504).

Almost surely, 2^78313574031 is an apocalyptic number.

78313574031 is a deficient number, since it is larger than the sum of its proper divisors (51884618097).

78313574031 is a wasteful number, since it uses less digits than its factorization.

78313574031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38011.

The product of its (nonzero) digits is 211680, while the sum is 42.

The spelling of 78313574031 in words is "seventy-eight billion, three hundred thirteen million, five hundred seventy-four thousand, thirty-one".