136839491188434 has 24 divisors (see below), whose sum is σ = 298748812828752. Its totient is φ = 45264971639160.

The previous prime is 136839491188409. The next prime is 136839491188459. The reversal of 136839491188434 is 434881194938631.

136839491188434 is a `hidden beast` number, since 1 + 3 + 6 + 8 + 3 + 9 + 4 + 9 + 1 + 188 + 434 = 666.

It is an interprime number because it is at equal distance from previous prime (136839491188409) and next prime (136839491188459).

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, 29016005104 + ... + 29016009819.

It is an arithmetic number, because the mean of its divisors is an integer number (12447867201198).

Almost surely, 2^{136839491188434} is an apocalyptic number.

136839491188434 is an abundant number, since it is smaller than the sum of its proper divisors (161909321640318).

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

136839491188434 is a wasteful number, since it uses less digits than its factorization.

136839491188434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58032015062 (or 58032015059 counting only the distinct ones).

The product of its digits is 429981696, while the sum is 72.

The spelling of 136839491188434 in words is "one hundred thirty-six trillion, eight hundred thirty-nine billion, four hundred ninety-one million, one hundred eighty-eight thousand, four hundred thirty-four".