31352811424 has 72 divisors (see below), whose sum is σ = 68148216864. Its totient is φ = 14188099200.

The previous prime is 31352811379. The next prime is 31352811433. The reversal of 31352811424 is 42411825313.

It is a self number, because there is not a number n which added to its sum of digits gives 31352811424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 861109 + ... + 896779.

It is an arithmetic number, because the mean of its divisors is an integer number (946503012).

Almost surely, 2^31352811424 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 31352811424, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34074108432).

31352811424 is an abundant number, since it is smaller than the sum of its proper divisors (36795405440).

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

31352811424 is a wasteful number, since it uses less digits than its factorization.

31352811424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35930 (or 35911 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The spelling of 31352811424 in words is "thirty-one billion, three hundred fifty-two million, eight hundred eleven thousand, four hundred twenty-four".