13431560545 has 16 divisors (see below), whose sum is σ = 17392536000. Its totient is φ = 9898789824.

The previous prime is 13431560507. The next prime is 13431560567. The reversal of 13431560545 is 54506513431.

It is a cyclic number.

It is not a de Polignac number, because 13431560545 - 2¹⁵ = 13431527777 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 174619 + ... + 239488.

It is an arithmetic number, because the mean of its divisors is an integer number (1087033500).

Almost surely, 2^13431560545 is an apocalyptic number.

It is an amenable number.

13431560545 is a deficient number, since it is larger than the sum of its proper divisors (3960975455).

13431560545 is a wasteful number, since it uses less digits than its factorization.

13431560545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414624.

The product of its (nonzero) digits is 108000, while the sum is 37.

The spelling of 13431560545 in words is "thirteen billion, four hundred thirty-one million, five hundred sixty thousand, five hundred forty-five".