135816587886 has 64 divisors (see below), whose sum is σ = 312447518208. Its totient is φ = 38553852288.

The previous prime is 135816587869. The next prime is 135816587917. The reversal of 135816587886 is 688785618531.

It is a super-2 number, since 2×135816587886² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 12106816 + ... + 12118028.

It is an arithmetic number, because the mean of its divisors is an integer number (4881992472).

Almost surely, 2^135816587886 is an apocalyptic number.

135816587886 is an abundant number, since it is smaller than the sum of its proper divisors (176630930322).

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

135816587886 is a wasteful number, since it uses less digits than its factorization.

135816587886 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13065.

The product of its digits is 77414400, while the sum is 66.

The spelling of 135816587886 in words is "one hundred thirty-five billion, eight hundred sixteen million, five hundred eighty-seven thousand, eight hundred eighty-six".