135887987080 has 32 divisors (see below), whose sum is σ = 321839971200. Its totient is φ = 51494394816.

The previous prime is 135887987071. The next prime is 135887987083. The reversal of 135887987080 is 80789788531.

It is not an unprimeable number, because it can be changed into a prime (135887987083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 89399232 + ... + 89400751.

It is an arithmetic number, because the mean of its divisors is an integer number (10057499100).

Almost surely, 2^135887987080 is an apocalyptic number.

135887987080 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135887987080 is an abundant number, since it is smaller than the sum of its proper divisors (185951984120).

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

135887987080 is a wasteful number, since it uses less digits than its factorization.

135887987080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178800013 (or 178800009 counting only the distinct ones).

The product of its (nonzero) digits is 27095040, while the sum is 64.

The spelling of 135887987080 in words is "one hundred thirty-five billion, eight hundred eighty-seven million, nine hundred eighty-seven thousand, eighty".