31962142928 has 10 divisors (see below), whose sum is σ = 61926651954. Its totient is φ = 15981071456.

The previous prime is 31962142909. The next prime is 31962142943. The reversal of 31962142928 is 82924126913.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 24202647184 + 7759495744 = 155572^2 + 88088^2 .

It is a congruent number.

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 as a sum of consecutive naturals, namely, 998816951 + ... + 998816982.

Almost surely, 2^31962142928 is an apocalyptic number.

It is an amenable number.

31962142928 is a deficient number, since it is larger than the sum of its proper divisors (29964509026).

31962142928 is a wasteful number, since it uses less digits than its factorization.

31962142928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1997633941 (or 1997633935 counting only the distinct ones).

The product of its digits is 373248, while the sum is 47.

The spelling of 31962142928 in words is "thirty-one billion, nine hundred sixty-two million, one hundred forty-two thousand, nine hundred twenty-eight".