31445831704 has 64 divisors (see below), whose sum is σ = 68175777600. Its totient is φ = 13318815744.

The previous prime is 31445831699. The next prime is 31445831713. The reversal of 31445831704 is 40713854413.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4195192 + ... + 4202680.

It is an arithmetic number, because the mean of its divisors is an integer number (1065246525).

Almost surely, 2^31445831704 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 31445831704, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34087888800).

31445831704 is an abundant number, since it is smaller than the sum of its proper divisors (36729945896).

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

31445831704 is a wasteful number, since it uses less digits than its factorization.

31445831704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8372 (or 8368 counting only the distinct ones).

The product of its (nonzero) digits is 161280, while the sum is 40.

The spelling of 31445831704 in words is "thirty-one billion, four hundred forty-five million, eight hundred thirty-one thousand, seven hundred four".