13587216479 has 4 divisors (see below), whose sum is σ = 13954438584. Its totient is φ = 13219994376.

The previous prime is 13587216473. The next prime is 13587216491. The reversal of 13587216479 is 97461278531.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13587216479 - 2²⁴ = 13570439263 is a prime.

It is a super-2 number, since 2×13587216479² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13587216479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13587216473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183610997 + ... + 183611070.

It is an arithmetic number, because the mean of its divisors is an integer number (3488609646).

Almost surely, 2^13587216479 is an apocalyptic number.

13587216479 is a deficient number, since it is larger than the sum of its proper divisors (367222105).

13587216479 is an equidigital number, since it uses as much as digits as its factorization.

13587216479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367222104.

The product of its digits is 2540160, while the sum is 53.

The spelling of 13587216479 in words is "thirteen billion, five hundred eighty-seven million, two hundred sixteen thousand, four hundred seventy-nine".