11725576657 has 4 divisors (see below), whose sum is σ = 11890725696. Its totient is φ = 11560427620.

The previous prime is 11725576631. The next prime is 11725576661. The reversal of 11725576657 is 75667552711.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11725576657 - 2³¹ = 9578093009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11725576607) 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, 82574413 + ... + 82574554.

It is an arithmetic number, because the mean of its divisors is an integer number (2972681424).

Almost surely, 2^11725576657 is an apocalyptic number.

It is an amenable number.

11725576657 is a deficient number, since it is larger than the sum of its proper divisors (165149039).

11725576657 is an equidigital number, since it uses as much as digits as its factorization.

11725576657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165149038.

The product of its digits is 3087000, while the sum is 52.

The spelling of 11725576657 in words is "eleven billion, seven hundred twenty-five million, five hundred seventy-six thousand, six hundred fifty-seven".