23207644057 has 16 divisors (see below), whose sum is σ = 25201103872. Its totient is φ = 21244420800.

The previous prime is 23207644043. The next prime is 23207644123. The reversal of 23207644057 is 75044670232.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23207644057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23207644657) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1181803 + ... + 1201279.

It is an arithmetic number, because the mean of its divisors is an integer number (1575068992).

Almost surely, 2^23207644057 is an apocalyptic number.

It is an amenable number.

23207644057 is a deficient number, since it is larger than the sum of its proper divisors (1993459815).

23207644057 is a wasteful number, since it uses less digits than its factorization.

23207644057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20248.

The product of its (nonzero) digits is 282240, while the sum is 40.

The spelling of 23207644057 in words is "twenty-three billion, two hundred seven million, six hundred forty-four thousand, fifty-seven".