31492250944 has 112 divisors (see below), whose sum is σ = 77997588480. Its totient is φ = 12256335360.

The previous prime is 31492250917. The next prime is 31492250963. The reversal of 31492250944 is 44905229413.

It is a tau number, because it is divible by the number of its divisors (112).

It is a super-2 number, since 2×31492250944² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31492250944.

It is a congruent number.

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, 5353797 + ... + 5359675.

It is an arithmetic number, because the mean of its divisors is an integer number (696407040).

Almost surely, 2^31492250944 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31492250944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38998794240).

31492250944 is an abundant number, since it is smaller than the sum of its proper divisors (46505337536).

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

31492250944 is a wasteful number, since it uses less digits than its factorization.

31492250944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6996 (or 6986 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The spelling of 31492250944 in words is "thirty-one billion, four hundred ninety-two million, two hundred fifty thousand, nine hundred forty-four".