23047842186 has 12 divisors (see below), whose sum is σ = 49936991442. Its totient is φ = 7682614056.

The previous prime is 23047842163. The next prime is 23047842199. The reversal of 23047842186 is 68124874032.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 23047794225 + 47961 = 151815^2 + 219^2 .

It is a super-2 number, since 2×23047842186² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 640217821 + ... + 640217856.

Almost surely, 2^23047842186 is an apocalyptic number.

23047842186 is an abundant number, since it is smaller than the sum of its proper divisors (26889149256).

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

23047842186 is a wasteful number, since it uses less digits than its factorization.

23047842186 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1280435685 (or 1280435682 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 23047842186 in words is "twenty-three billion, forty-seven million, eight hundred forty-two thousand, one hundred eighty-six".