31439327530164 has 96 divisors (see below), whose sum is σ = 77583111365760. Its totient is φ = 9881491968000.

The previous prime is 31439327530129. The next prime is 31439327530187. The reversal of 31439327530164 is 46103572393413.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 98802502 + ... + 99120194.

It is an arithmetic number, because the mean of its divisors is an integer number (808157410060).

Almost surely, 2^{31439327530164} 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 31439327530164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38791555682880).

31439327530164 is an abundant number, since it is smaller than the sum of its proper divisors (46143783835596).

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

31439327530164 is a wasteful number, since it uses less digits than its factorization.

31439327530164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319761 (or 319759 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 51.

The spelling of 31439327530164 in words is "thirty-one trillion, four hundred thirty-nine billion, three hundred twenty-seven million, five hundred thirty thousand, one hundred sixty-four".