136427857866 has 48 divisors (see below), whose sum is σ = 300704620320. Its totient is φ = 44690173920.

The previous prime is 136427857847. The next prime is 136427857877. The reversal of 136427857866 is 668758724631.

136427857866 is a `hidden beast` number, since 1 + 3 + 6 + 427 + 85 + 78 + 66 = 666.

It is a super-2 number, since 2×136427857866² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3400761 + ... + 3440643.

It is an arithmetic number, because the mean of its divisors is an integer number (6264679590).

Almost surely, 2^136427857866 is an apocalyptic number.

136427857866 is an abundant number, since it is smaller than the sum of its proper divisors (164276762454).

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

136427857866 is a wasteful number, since it uses less digits than its factorization.

136427857866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43171 (or 43168 counting only the distinct ones).

The product of its digits is 81285120, while the sum is 63.

The spelling of 136427857866 in words is "one hundred thirty-six billion, four hundred twenty-seven million, eight hundred fifty-seven thousand, eight hundred sixty-six".