31248800064 has 42 divisors (see below), whose sum is σ = 89569044890. Its totient is φ = 10416266496.

The previous prime is 31248800059. The next prime is 31248800101. The reversal of 31248800064 is 46000884213.

It can be written as a sum of positive squares in only one way, i.e., 24261177600 + 6987622464 = 155760^2 + 83592^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27125119 + ... + 27126270.

Almost surely, 2^31248800064 is an apocalyptic number.

It is an amenable number.

31248800064 is an abundant number, since it is smaller than the sum of its proper divisors (58320244826).

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

31248800064 is a wasteful number, since it uses less digits than its factorization.

31248800064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54251407 (or 54251394 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 36.

The spelling of 31248800064 in words is "thirty-one billion, two hundred forty-eight million, eight hundred thousand, sixty-four".