136979444157 has 16 divisors (see below), whose sum is σ = 188541534720. Its totient is φ = 88368825600.

The previous prime is 136979444141. The next prime is 136979444183. The reversal of 136979444157 is 751444979631.

It is not a de Polignac number, because 136979444157 - 2⁴ = 136979444141 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136979444157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (136979444117) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2325769 + ... + 2383937.

It is an arithmetic number, because the mean of its divisors is an integer number (11783845920).

Almost surely, 2^136979444157 is an apocalyptic number.

It is an amenable number.

136979444157 is a deficient number, since it is larger than the sum of its proper divisors (51562090563).

136979444157 is a wasteful number, since it uses less digits than its factorization.

136979444157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83524.

The product of its digits is 22861440, while the sum is 60.

The spelling of 136979444157 in words is "one hundred thirty-six billion, nine hundred seventy-nine million, four hundred forty-four thousand, one hundred fifty-seven".