31254402664 has 24 divisors (see below), whose sum is σ = 60066209430. Its totient is φ = 15246043520.

The previous prime is 31254402661. The next prime is 31254402671. The reversal of 31254402664 is 46620445213.

It can be written as a sum of positive squares in 3 ways, for example, as 16707630564 + 14546772100 = 129258^2 + 120610^2 .

It is not an unprimeable number, because it can be changed into a prime (31254402661) 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 in 5 ways as a sum of consecutive naturals, for example, 1148599 + ... + 1175494.

Almost surely, 2^31254402664 is an apocalyptic number.

It is an amenable number.

31254402664 is a deficient number, since it is larger than the sum of its proper divisors (28811806766).

31254402664 is a wasteful number, since it uses less digits than its factorization.

31254402664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2324181 (or 2324136 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 31254402664 its reverse (46620445213), we get a palindrome (77874847877).

The spelling of 31254402664 in words is "thirty-one billion, two hundred fifty-four million, four hundred two thousand, six hundred sixty-four".