13618964087 has 4 divisors (see below), whose sum is σ = 13630304976. Its totient is φ = 13607623200.

The previous prime is 13618964069. The next prime is 13618964119. The reversal of 13618964087 is 78046981631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78046981631 = 74891 ⋅1042141.

It is a cyclic number.

It is not a de Polignac number, because 13618964087 - 2¹⁰ = 13618963063 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13618964017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5668643 + ... + 5671044.

It is an arithmetic number, because the mean of its divisors is an integer number (3407576244).

Almost surely, 2^13618964087 is an apocalyptic number.

13618964087 is a deficient number, since it is larger than the sum of its proper divisors (11340889).

13618964087 is a wasteful number, since it uses less digits than its factorization.

13618964087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11340888.

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 13618964087 in words is "thirteen billion, six hundred eighteen million, nine hundred sixty-four thousand, eighty-seven".