31444734320 has 40 divisors (see below), whose sum is σ = 73117708560. Its totient is φ = 12576396800.

The previous prime is 31444734317. The next prime is 31444734337. The reversal of 31444734320 is 2343744413.

It is a tau number, because it is divible by the number of its divisors (40).

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 7 ways as a sum of consecutive naturals, for example, 860420 + ... + 896220.

It is an arithmetic number, because the mean of its divisors is an integer number (1827942714).

Almost surely, 2^31444734320 is an apocalyptic number.

It is an amenable number.

31444734320 is an abundant number, since it is smaller than the sum of its proper divisors (41672974240).

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

31444734320 is a wasteful number, since it uses less digits than its factorization.

31444734320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46793 (or 46787 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 35.

The spelling of 31444734320 in words is "thirty-one billion, four hundred forty-four million, seven hundred thirty-four thousand, three hundred twenty".