23656342986 has 24 divisors (see below), whose sum is σ = 51271293060. Its totient is φ = 7883004096.

The previous prime is 23656342951. The next prime is 23656342993. The reversal of 23656342986 is 68924365632.

It is a happy number.

23656342986 is a `hidden beast` number, since 2 + 36 + 563 + 42 + 9 + 8 + 6 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 13692510225 + 9963832761 = 117015^2 + 99819^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 143451 + ... + 260558.

Almost surely, 2^23656342986 is an apocalyptic number.

23656342986 is an abundant number, since it is smaller than the sum of its proper divisors (27614950074).

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

23656342986 is a wasteful number, since it uses less digits than its factorization.

23656342986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 407270 (or 407267 counting only the distinct ones).

The product of its digits is 11197440, while the sum is 54.

The spelling of 23656342986 in words is "twenty-three billion, six hundred fifty-six million, three hundred forty-two thousand, nine hundred eighty-six".