135170911788 has 24 divisors (see below), whose sum is σ = 344071412160. Its totient is φ = 40960882320.

The previous prime is 135170911781. The next prime is 135170911831. The reversal of 135170911788 is 887119071531.

It is a self number, because there is not a number n which added to its sum of digits gives 135170911788.

It is not an unprimeable number, because it can be changed into a prime (135170911781) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512010898 + ... + 512011161.

It is an arithmetic number, because the mean of its divisors is an integer number (14336308840).

Almost surely, 2^135170911788 is an apocalyptic number.

It is an amenable number.

135170911788 is an abundant number, since it is smaller than the sum of its proper divisors (208900500372).

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

135170911788 is a wasteful number, since it uses less digits than its factorization.

135170911788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1024022077 (or 1024022075 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 51.

The spelling of 135170911788 in words is "one hundred thirty-five billion, one hundred seventy million, nine hundred eleven thousand, seven hundred eighty-eight".