13513544401 has 12 divisors (see below), whose sum is σ = 16299679872. Its totient is φ = 10973402424.

The previous prime is 13513544377. The next prime is 13513544411. The reversal of 13513544401 is 10444531531.

It is not a de Polignac number, because 13513544401 - 2²¹ = 13511447249 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13513544411) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2671305 + ... + 2676358.

It is an arithmetic number, because the mean of its divisors is an integer number (1358306656).

Almost surely, 2^13513544401 is an apocalyptic number.

It is an amenable number.

13513544401 is a deficient number, since it is larger than the sum of its proper divisors (2786135471).

13513544401 is an equidigital number, since it uses as much as digits as its factorization.

13513544401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5347708 (or 5347689 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The spelling of 13513544401 in words is "thirteen billion, five hundred thirteen million, five hundred forty-four thousand, four hundred one".