135375621864 has 64 divisors (see below), whose sum is σ = 399264522240. Its totient is φ = 37431046080.

The previous prime is 135375621853. The next prime is 135375621877. The reversal of 135375621864 is 468126573531.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12991684 + ... + 13002099.

It is an arithmetic number, because the mean of its divisors is an integer number (6238508160).

Almost surely, 2^135375621864 is an apocalyptic number.

135375621864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

135375621864 is an abundant number, since it is smaller than the sum of its proper divisors (263888900376).

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

135375621864 is a wasteful number, since it uses less digits than its factorization.

135375621864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25993830 (or 25993826 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 51.

The spelling of 135375621864 in words is "one hundred thirty-five billion, three hundred seventy-five million, six hundred twenty-one thousand, eight hundred sixty-four".