13113526545 has 48 divisors (see below), whose sum is σ = 26403167232. Its totient is φ = 5896471680.

The previous prime is 13113526513. The next prime is 13113526549. The reversal of 13113526545 is 54562531131.

13113526545 is a `hidden beast` number, since 13 + 113 + 526 + 5 + 4 + 5 = 666.

It is not a de Polignac number, because 13113526545 - 2⁵ = 13113526513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13113526549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 322017 + ... + 360446.

It is an arithmetic number, because the mean of its divisors is an integer number (550065984).

Almost surely, 2^13113526545 is an apocalyptic number.

13113526545 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

13113526545 is an abundant number, since it is smaller than the sum of its proper divisors (13289640687).

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

13113526545 is a wasteful number, since it uses less digits than its factorization.

13113526545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 682542 (or 682539 counting only the distinct ones).

The product of its digits is 54000, while the sum is 36.

The spelling of 13113526545 in words is "thirteen billion, one hundred thirteen million, five hundred twenty-six thousand, five hundred forty-five".