31954907677 has 24 divisors (see below), whose sum is σ = 40785831072. Its totient is φ = 24755925600.

The previous prime is 31954907669. The next prime is 31954907779. The reversal of 31954907677 is 77670945913.

It is not a de Polignac number, because 31954907677 - 2³ = 31954907669 is a prime.

It is a super-2 number, since 2×31954907677² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31954907657) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 78099 + ... + 264592.

It is an arithmetic number, because the mean of its divisors is an integer number (1699409628).

Almost surely, 2^31954907677 is an apocalyptic number.

It is an amenable number.

31954907677 is a deficient number, since it is larger than the sum of its proper divisors (8830923395).

31954907677 is a wasteful number, since it uses less digits than its factorization.

31954907677 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342889 (or 342882 counting only the distinct ones).

The product of its (nonzero) digits is 10001880, while the sum is 58.

The spelling of 31954907677 in words is "thirty-one billion, nine hundred fifty-four million, nine hundred seven thousand, six hundred seventy-seven".