13617914887 has 12 divisors (see below), whose sum is σ = 14281461048. Its totient is φ = 12981870000.

The previous prime is 13617914879. The next prime is 13617914899. The reversal of 13617914887 is 78841971631.

It is not a de Polignac number, because 13617914887 - 2³ = 13617914879 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 (13617914987) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 41364 + ... + 170137.

It is an arithmetic number, because the mean of its divisors is an integer number (1190121754).

Almost surely, 2^13617914887 is an apocalyptic number.

13617914887 is a deficient number, since it is larger than the sum of its proper divisors (663546161).

13617914887 is an equidigital number, since it uses as much as digits as its factorization.

13617914887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 211630 (or 211599 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 55.

The spelling of 13617914887 in words is "thirteen billion, six hundred seventeen million, nine hundred fourteen thousand, eight hundred eighty-seven".