31441626541 has 4 divisors (see below), whose sum is σ = 33860213212. Its totient is φ = 29023039872.

The previous prime is 31441626521. The next prime is 31441626563. The reversal of 31441626541 is 14562614413.

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 14549425641 + 16892200900 = 120621^2 + 129970^2 .

It is a cyclic number.

It is not a de Polignac number, because 31441626541 - 2²¹ = 31439529389 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 31441626541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31441626521) 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, 1209293316 + ... + 1209293341.

It is an arithmetic number, because the mean of its divisors is an integer number (8465053303).

Almost surely, 2^31441626541 is an apocalyptic number.

It is an amenable number.

31441626541 is a deficient number, since it is larger than the sum of its proper divisors (2418586671).

31441626541 is a wasteful number, since it uses less digits than its factorization.

31441626541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2418586670.

The product of its digits is 69120, while the sum is 37.

The spelling of 31441626541 in words is "thirty-one billion, four hundred forty-one million, six hundred twenty-six thousand, five hundred forty-one".