136774734138 has 64 divisors (see below), whose sum is σ = 358569738240. Its totient is φ = 37817895600.

The previous prime is 136774734137. The next prime is 136774734167. The reversal of 136774734138 is 831437477631.

136774734138 is a `hidden beast` number, since 1 + 36 + 7 + 7 + 473 + 4 + 138 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (136774734137) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5824378 + ... + 5847813.

It is an arithmetic number, because the mean of its divisors is an integer number (5602652160).

Almost surely, 2^136774734138 is an apocalyptic number.

136774734138 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

136774734138 is an abundant number, since it is smaller than the sum of its proper divisors (221795004102).

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

136774734138 is a wasteful number, since it uses less digits than its factorization.

136774734138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11672240 (or 11672234 counting only the distinct ones).

The product of its digits is 7112448, while the sum is 54.

The spelling of 136774734138 in words is "one hundred thirty-six billion, seven hundred seventy-four million, seven hundred thirty-four thousand, one hundred thirty-eight".