23907003557 has 12 divisors (see below), whose sum is σ = 24770038020. Its totient is φ = 23073090432.

The previous prime is 23907003487. The next prime is 23907003587. The reversal of 23907003557 is 75530070932.

It can be written as a sum of positive squares in 6 ways, for example, as 166048996 + 23740954561 = 12886^2 + 154081^2 .

It is not a de Polignac number, because 23907003557 - 2¹⁰ = 23907002533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23907003587) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2866169 + ... + 2874497.

It is an arithmetic number, because the mean of its divisors is an integer number (2064169835).

Almost surely, 2^23907003557 is an apocalyptic number.

It is an amenable number.

23907003557 is a deficient number, since it is larger than the sum of its proper divisors (863034463).

23907003557 is an equidigital number, since it uses as much as digits as its factorization.

23907003557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11800 (or 11771 counting only the distinct ones).

The product of its (nonzero) digits is 198450, while the sum is 41.

The spelling of 23907003557 in words is "twenty-three billion, nine hundred seven million, three thousand, five hundred fifty-seven".