23857039918 has 16 divisors (see below), whose sum is σ = 37047608640. Its totient is φ = 11514790656.

The previous prime is 23857039891. The next prime is 23857039919. The reversal of 23857039918 is 81993075832.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23857039919) 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, 1731483 + ... + 1745206.

It is an arithmetic number, because the mean of its divisors is an integer number (2315475540).

Almost surely, 2^23857039918 is an apocalyptic number.

23857039918 is a deficient number, since it is larger than the sum of its proper divisors (13190568722).

23857039918 is a wasteful number, since it uses less digits than its factorization.

23857039918 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3476811.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 23857039918 in words is "twenty-three billion, eight hundred fifty-seven million, thirty-nine thousand, nine hundred eighteen".