136987679535 has 16 divisors (see below), whose sum is σ = 250491757056. Its totient is φ = 62622939168.

The previous prime is 136987679503. The next prime is 136987679567. The reversal of 136987679535 is 535976789631.

It is an interprime number because it is at equal distance from previous prime (136987679503) and next prime (136987679567).

It is not a de Polignac number, because 136987679535 - 2⁵ = 136987679503 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 136987679535.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 652322179 + ... + 652322388.

It is an arithmetic number, because the mean of its divisors is an integer number (15655734816).

Almost surely, 2^136987679535 is an apocalyptic number.

136987679535 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

136987679535 is a deficient number, since it is larger than the sum of its proper divisors (113504077521).

136987679535 is a wasteful number, since it uses less digits than its factorization.

136987679535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1304644582.

The product of its digits is 257191200, while the sum is 69.

The spelling of 136987679535 in words is "one hundred thirty-six billion, nine hundred eighty-seven million, six hundred seventy-nine thousand, five hundred thirty-five".