135147831808 has 80 divisors (see below), whose sum is σ = 295624444896. Its totient is φ = 61213040640.

The previous prime is 135147831799. The next prime is 135147831967. The reversal of 135147831808 is 808138741531.

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, 1551460 + ... + 1636252.

Almost surely, 2^135147831808 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 135147831808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147812222448).

135147831808 is an abundant number, since it is smaller than the sum of its proper divisors (160476613088).

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

135147831808 is an equidigital number, since it uses as much as digits as its factorization.

135147831808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85105 (or 85089 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 49.

The spelling of 135147831808 in words is "one hundred thirty-five billion, one hundred forty-seven million, eight hundred thirty-one thousand, eight hundred eight".