11725576671 has 4 divisors (see below), whose sum is σ = 15634102232. Its totient is φ = 7817051112.

The previous prime is 11725576661. The next prime is 11725576691. The reversal of 11725576671 is 17667552711.

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

It is not a de Polignac number, because 11725576671 - 2⁶ = 11725576607 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 11725576671.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11725576631) 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, 1954262776 + ... + 1954262781.

It is an arithmetic number, because the mean of its divisors is an integer number (3908525558).

Almost surely, 2^11725576671 is an apocalyptic number.

11725576671 is a deficient number, since it is larger than the sum of its proper divisors (3908525561).

11725576671 is an equidigital number, since it uses as much as digits as its factorization.

11725576671 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3908525560.

The product of its digits is 617400, while the sum is 48.

The spelling of 11725576671 in words is "eleven billion, seven hundred twenty-five million, five hundred seventy-six thousand, six hundred seventy-one".