135889232020 has 24 divisors (see below), whose sum is σ = 285690603744. Its totient is φ = 54294127776.

The previous prime is 135889231997. The next prime is 135889232047. The reversal of 135889232020 is 20232988531.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3829714 + ... + 3865033.

It is an arithmetic number, because the mean of its divisors is an integer number (11903775156).

Almost surely, 2^135889232020 is an apocalyptic number.

135889232020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

135889232020 is an abundant number, since it is smaller than the sum of its proper divisors (149801371724).

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

135889232020 is a wasteful number, since it uses less digits than its factorization.

135889232020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7695639 (or 7695637 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 43.

The spelling of 135889232020 in words is "one hundred thirty-five billion, eight hundred eighty-nine million, two hundred thirty-two thousand, twenty".