11957625441 has 12 divisors (see below), whose sum is σ = 17693397540. Its totient is φ = 7777317120.

The previous prime is 11957625439. The next prime is 11957625469. The reversal of 11957625441 is 14452675911.

11957625441 is a `hidden beast` number, since 1 + 19 + 5 + 7 + 625 + 4 + 4 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2101305600 + 9856319841 = 45840^2 + 99279^2 .

It is not a de Polignac number, because 11957625441 - 2¹ = 11957625439 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11957625341) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16202376 + ... + 16203113.

It is an arithmetic number, because the mean of its divisors is an integer number (1474449795).

Almost surely, 2^11957625441 is an apocalyptic number.

It is an amenable number.

11957625441 is a deficient number, since it is larger than the sum of its proper divisors (5735772099).

11957625441 is a wasteful number, since it uses less digits than its factorization.

11957625441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32405536 (or 32405533 counting only the distinct ones).

The product of its digits is 302400, while the sum is 45.

The spelling of 11957625441 in words is "eleven billion, nine hundred fifty-seven million, six hundred twenty-five thousand, four hundred forty-one".