31264254240 has 96 divisors (see below), whose sum is σ = 100772755776. Its totient is φ = 8143242240.

The previous prime is 31264254221. The next prime is 31264254251. The reversal of 31264254240 is 4245246213.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 736731 + ... + 778010.

It is an arithmetic number, because the mean of its divisors is an integer number (1049716206).

Almost surely, 2^31264254240 is an apocalyptic number.

31264254240 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31264254240 is an abundant number, since it is smaller than the sum of its proper divisors (69508501536).

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

31264254240 is a wasteful number, since it uses less digits than its factorization.

31264254240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1514802 (or 1514794 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 31264254240 in words is "thirty-one billion, two hundred sixty-four million, two hundred fifty-four thousand, two hundred forty".