31941825945 has 32 divisors (see below), whose sum is σ = 51891840000. Its totient is φ = 16775853504.

The previous prime is 31941825913. The next prime is 31941825947. The reversal of 31941825945 is 54952814913.

It is not a de Polignac number, because 31941825945 - 2⁵ = 31941825913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31941825947) 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, 218806 + ... + 334304.

It is an arithmetic number, because the mean of its divisors is an integer number (1621620000).

Almost surely, 2^31941825945 is an apocalyptic number.

It is an amenable number.

31941825945 is a deficient number, since it is larger than the sum of its proper divisors (19950014055).

31941825945 is a wasteful number, since it uses less digits than its factorization.

31941825945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115789.

The product of its digits is 1555200, while the sum is 51.

The spelling of 31941825945 in words is "thirty-one billion, nine hundred forty-one million, eight hundred twenty-five thousand, nine hundred forty-five".