31312846672 has 10 divisors (see below), whose sum is σ = 60668640458. Its totient is φ = 15656423328.

The previous prime is 31312846651. The next prime is 31312846673. The reversal of 31312846672 is 27664821313.

It can be written as a sum of positive squares in only one way, i.e., 17557310016 + 13755536656 = 132504^2 + 117284^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31312846673) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978526443 + ... + 978526474.

Almost surely, 2^31312846672 is an apocalyptic number.

It is an amenable number.

31312846672 is a deficient number, since it is larger than the sum of its proper divisors (29355793786).

31312846672 is a wasteful number, since it uses less digits than its factorization.

31312846672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1957052925 (or 1957052919 counting only the distinct ones).

The product of its digits is 290304, while the sum is 43.

The spelling of 31312846672 in words is "thirty-one billion, three hundred twelve million, eight hundred forty-six thousand, six hundred seventy-two".