135538888634 has 128 divisors (see below), whose sum is σ = 237625933824. Its totient is φ = 57594240000.

The previous prime is 135538888571. The next prime is 135538888637. The reversal of 135538888634 is 436888835531.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (62).

It is not an unprimeable number, because it can be changed into a prime (135538888637) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 223292759 + ... + 223293365.

It is an arithmetic number, because the mean of its divisors is an integer number (1856452608).

Almost surely, 2^135538888634 is an apocalyptic number.

135538888634 is a deficient number, since it is larger than the sum of its proper divisors (102087045190).

135538888634 is a wasteful number, since it uses less digits than its factorization.

135538888634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892.

The product of its digits is 66355200, while the sum is 62.

The spelling of 135538888634 in words is "one hundred thirty-five billion, five hundred thirty-eight million, eight hundred eighty-eight thousand, six hundred thirty-four".