31124330664 has 64 divisors (see below), whose sum is σ = 92793047040. Its totient is φ = 8506027200.

The previous prime is 31124330639. The next prime is 31124330681. The reversal of 31124330664 is 46603342113.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4023612 + ... + 4031339.

It is an arithmetic number, because the mean of its divisors is an integer number (1449891360).

Almost surely, 2^31124330664 is an apocalyptic number.

It is an amenable number.

31124330664 is an abundant number, since it is smaller than the sum of its proper divisors (61668716376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31124330664 is a wasteful number, since it uses less digits than its factorization.

31124330664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8054990 (or 8054986 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 33.

Adding to 31124330664 its reverse (46603342113), we get a palindrome (77727672777).

The spelling of 31124330664 in words is "thirty-one billion, one hundred twenty-four million, three hundred thirty thousand, six hundred sixty-four".