23857621954 has 16 divisors (see below), whose sum is σ = 35964322560. Its totient is φ = 11869593120.

The previous prime is 23857621859. The next prime is 23857621967. The reversal of 23857621954 is 45912675832.

It is a super-2 number, since 2×23857621954² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 612547 + ... + 650329.

It is an arithmetic number, because the mean of its divisors is an integer number (2247770160).

Almost surely, 2^23857621954 is an apocalyptic number.

23857621954 is a deficient number, since it is larger than the sum of its proper divisors (12106700606).

23857621954 is a wasteful number, since it uses less digits than its factorization.

23857621954 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39345.

The product of its digits is 3628800, while the sum is 52.

The spelling of 23857621954 in words is "twenty-three billion, eight hundred fifty-seven million, six hundred twenty-one thousand, nine hundred fifty-four".