31960779811441 has 4 divisors (see below), whose sum is σ = 34419301335412. Its totient is φ = 29502258287472.

The previous prime is 31960779811439. The next prime is 31960779811459. The reversal of 31960779811441 is 14411897706913.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18276514210816 + 13684265600625 = 4275104^2 + 3699225^2 .

It is a cyclic number.

It is not a de Polignac number, because 31960779811441 - 2¹ = 31960779811439 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31960779811441.

It is not an unprimeable number, because it can be changed into a prime (31960779811141) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1229260761966 + ... + 1229260761991.

It is an arithmetic number, because the mean of its divisors is an integer number (8604825333853).

Almost surely, 2^{31960779811441} is an apocalyptic number.

It is an amenable number.

31960779811441 is a deficient number, since it is larger than the sum of its proper divisors (2458521523971).

31960779811441 is a wasteful number, since it uses less digits than its factorization.

31960779811441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2458521523970.

The product of its (nonzero) digits is 9144576, while the sum is 61.

The spelling of 31960779811441 in words is "thirty-one trillion, nine hundred sixty billion, seven hundred seventy-nine million, eight hundred eleven thousand, four hundred forty-one".