31022868928 has 14 divisors (see below), whose sum is σ = 61561005656. Its totient is φ = 15511434432.

The previous prime is 31022868923. The next prime is 31022868937. The reversal of 31022868928 is 82986822013.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31022868923) 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 as a sum of consecutive naturals, namely, 242366100 + ... + 242366227.

Almost surely, 2^31022868928 is an apocalyptic number.

It is an amenable number.

31022868928 is a deficient number, since it is larger than the sum of its proper divisors (30538136728).

31022868928 is an equidigital number, since it uses as much as digits as its factorization.

31022868928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484732339 (or 484732329 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

The spelling of 31022868928 in words is "thirty-one billion, twenty-two million, eight hundred sixty-eight thousand, nine hundred twenty-eight".