31942856958 has 32 divisors (see below), whose sum is σ = 64137929856. Its totient is φ = 10605631968.

The previous prime is 31942856951. The next prime is 31942856963. The reversal of 31942856958 is 85965824913.

It is a super-2 number, since 2×31942856958² (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 (31942856951) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3113385 + ... + 3123627.

It is an arithmetic number, because the mean of its divisors is an integer number (2004310308).

Almost surely, 2^31942856958 is an apocalyptic number.

31942856958 is an abundant number, since it is smaller than the sum of its proper divisors (32195072898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31942856958 is a wasteful number, since it uses less digits than its factorization.

31942856958 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12248.

The product of its digits is 18662400, while the sum is 60.

The spelling of 31942856958 in words is "thirty-one billion, nine hundred forty-two million, eight hundred fifty-six thousand, nine hundred fifty-eight".