13133535780 has 24 divisors (see below), whose sum is σ = 36773900352. Its totient is φ = 3502276192.

The previous prime is 13133535769. The next prime is 13133535797. The reversal of 13133535780 is 8753533131.

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, 109446072 + ... + 109446191.

It is an arithmetic number, because the mean of its divisors is an integer number (1532245848).

Almost surely, 2^13133535780 is an apocalyptic number.

13133535780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13133535780 is an abundant number, since it is smaller than the sum of its proper divisors (23640364572).

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

13133535780 is a wasteful number, since it uses less digits than its factorization.

13133535780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218892275 (or 218892273 counting only the distinct ones).

The product of its (nonzero) digits is 113400, while the sum is 39.

The spelling of 13133535780 in words is "thirteen billion, one hundred thirty-three million, five hundred thirty-five thousand, seven hundred eighty".