31963942564 has 12 divisors (see below), whose sum is σ = 57865758300. Its totient is φ = 15430868768.

The previous prime is 31963942531. The next prime is 31963942597. The reversal of 31963942564 is 46524936913.

It is an interprime number because it is at equal distance from previous prime (31963942531) and next prime (31963942597).

It can be written as a sum of positive squares in 2 ways, for example, as 24850369600 + 7113572964 = 157640^2 + 84342^2 .

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 3 ways as a sum of consecutive naturals, for example, 137775499 + ... + 137775730.

It is an arithmetic number, because the mean of its divisors is an integer number (4822146525).

Almost surely, 2^31963942564 is an apocalyptic number.

It is an amenable number.

31963942564 is a deficient number, since it is larger than the sum of its proper divisors (25901815736).

31963942564 is a wasteful number, since it uses less digits than its factorization.

31963942564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275551262 (or 275551260 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 52.

The spelling of 31963942564 in words is "thirty-one billion, nine hundred sixty-three million, nine hundred forty-two thousand, five hundred sixty-four".