13109233557 has 16 divisors (see below), whose sum is σ = 19977950720. Its totient is φ = 7490249712.

The previous prime is 13109233547. The next prime is 13109233583. The reversal of 13109233557 is 75533290131.

It is not a de Polignac number, because 13109233557 - 2¹⁹ = 13108709269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13109233547) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 243018 + ... + 292020.

It is an arithmetic number, because the mean of its divisors is an integer number (1248621920).

Almost surely, 2^13109233557 is an apocalyptic number.

It is an amenable number.

13109233557 is a deficient number, since it is larger than the sum of its proper divisors (6868717163).

13109233557 is a wasteful number, since it uses less digits than its factorization.

13109233557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61752.

The product of its (nonzero) digits is 85050, while the sum is 39.

The spelling of 13109233557 in words is "thirteen billion, one hundred nine million, two hundred thirty-three thousand, five hundred fifty-seven".