136488792987 has 80 divisors (see below), whose sum is σ = 214244110080. Its totient is φ = 86478840000.

The previous prime is 136488792983. The next prime is 136488792997. The reversal of 136488792987 is 789297884631.

136488792987 is a `hidden beast` number, since 136 + 488 + 7 + 9 + 2 + 9 + 8 + 7 = 666.

It is not a de Polignac number, because 136488792987 - 2² = 136488792983 is a prime.

It is a super-2 number, since 2×136488792987² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (136488792983) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 60633612 + ... + 60635862.

It is an arithmetic number, because the mean of its divisors is an integer number (2678051376).

Almost surely, 2^136488792987 is an apocalyptic number.

136488792987 is a deficient number, since it is larger than the sum of its proper divisors (77755317093).

136488792987 is a wasteful number, since it uses less digits than its factorization.

136488792987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2686 (or 2677 counting only the distinct ones).

The product of its digits is 292626432, while the sum is 72.

The spelling of 136488792987 in words is "one hundred thirty-six billion, four hundred eighty-eight million, seven hundred ninety-two thousand, nine hundred eighty-seven".