11657207723 has 8 divisors (see below), whose sum is σ = 13328923392. Its totient is φ = 9987092136.

The previous prime is 11657207719. The next prime is 11657207743. The reversal of 11657207723 is 32770275611.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11657207723 - 2² = 11657207719 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11657207743) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 384365 + ... + 413582.

It is an arithmetic number, because the mean of its divisors is an integer number (1666115424).

Almost surely, 2^11657207723 is an apocalyptic number.

11657207723 is a deficient number, since it is larger than the sum of its proper divisors (1671715669).

11657207723 is an equidigital number, since it uses as much as digits as its factorization.

11657207723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800041.

The product of its (nonzero) digits is 123480, while the sum is 41.

The spelling of 11657207723 in words is "eleven billion, six hundred fifty-seven million, two hundred seven thousand, seven hundred twenty-three".