13586438645 has 16 divisors (see below), whose sum is σ = 17686030320. Its totient is φ = 9959821824.

The previous prime is 13586438633. The next prime is 13586438651. The reversal of 13586438645 is 54683468531.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 313785796 + 13272652849 = 17714^2 + 115207^2 .

It is a cyclic number.

It is not a de Polignac number, because 13586438645 - 2¹² = 13586434549 is a prime.

It is a congruent number.

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, 753950 + ... + 771759.

It is an arithmetic number, because the mean of its divisors is an integer number (1105376895).

Almost surely, 2^13586438645 is an apocalyptic number.

It is an amenable number.

13586438645 is a deficient number, since it is larger than the sum of its proper divisors (4099591675).

13586438645 is a wasteful number, since it uses less digits than its factorization.

13586438645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1525864.

The product of its digits is 8294400, while the sum is 53.

The spelling of 13586438645 in words is "thirteen billion, five hundred eighty-six million, four hundred thirty-eight thousand, six hundred forty-five".