23857679898 has 40 divisors (see below), whose sum is σ = 57571101588. Its totient is φ = 7340823936.

The previous prime is 23857679863. The next prime is 23857679921. The reversal of 23857679898 is 89897675832.

23857679898 is a `hidden beast` number, since 2 + 385 + 76 + 7 + 98 + 98 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 19603640169 + 4254039729 = 140013^2 + 65223^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 5662111 + ... + 5666322.

Almost surely, 2^23857679898 is an apocalyptic number.

23857679898 is an abundant number, since it is smaller than the sum of its proper divisors (33713421690).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23857679898 is a wasteful number, since it uses less digits than its factorization.

23857679898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11328460 (or 11328451 counting only the distinct ones).

The product of its digits is 365783040, while the sum is 72.

The spelling of 23857679898 in words is "twenty-three billion, eight hundred fifty-seven million, six hundred seventy-nine thousand, eight hundred ninety-eight".