13520753830785 has 32 divisors (see below), whose sum is σ = 22041756505728. Its totient is φ = 7074889902080.

The previous prime is 13520753830781. The next prime is 13520753830799. The reversal of 13520753830785 is 58703835702531.

It is not a de Polignac number, because 13520753830785 - 2² = 13520753830781 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13520753830781) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64451665 + ... + 64661105.

It is an arithmetic number, because the mean of its divisors is an integer number (688804890804).

Almost surely, 2^{13520753830785} is an apocalyptic number.

13520753830785 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13520753830785 is a deficient number, since it is larger than the sum of its proper divisors (8521002674943).

13520753830785 is a wasteful number, since it uses less digits than its factorization.

13520753830785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290705.

The product of its (nonzero) digits is 21168000, while the sum is 57.

The spelling of 13520753830785 in words is "thirteen trillion, five hundred twenty billion, seven hundred fifty-three million, eight hundred thirty thousand, seven hundred eighty-five".