23899122257 has 16 divisors (see below), whose sum is σ = 25456191120. Its totient is φ = 22359048192.

The previous prime is 23899122211. The next prime is 23899122287. The reversal of 23899122257 is 75222199832.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 782656576 + 23116465681 = 27976^2 + 152041^2 .

It is a cyclic number.

It is not a de Polignac number, because 23899122257 - 2¹⁶ = 23899056721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23899122287) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6143369 + ... + 6147257.

It is an arithmetic number, because the mean of its divisors is an integer number (1591011945).

Almost surely, 2^23899122257 is an apocalyptic number.

It is an amenable number.

23899122257 is a deficient number, since it is larger than the sum of its proper divisors (1557068863).

23899122257 is a wasteful number, since it uses less digits than its factorization.

23899122257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5972.

The product of its digits is 1088640, while the sum is 50.

The spelling of 23899122257 in words is "twenty-three billion, eight hundred ninety-nine million, one hundred twenty-two thousand, two hundred fifty-seven".