13087039518 has 96 divisors (see below), whose sum is σ = 34523663616. Its totient is φ = 3497520384.

The previous prime is 13087039487. The next prime is 13087039519. The reversal of 13087039518 is 81593078031.

13087039518 is a `hidden beast` number, since 1 + 30 + 8 + 70 + 39 + 518 = 666.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13087039519) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 330405 + ... + 367887.

It is an arithmetic number, because the mean of its divisors is an integer number (359621496).

Almost surely, 2^13087039518 is an apocalyptic number.

13087039518 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 13087039518, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17261831808).

13087039518 is an abundant number, since it is smaller than the sum of its proper divisors (21436624098).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13087039518 is a wasteful number, since it uses less digits than its factorization.

13087039518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37678 (or 37675 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 45.

The spelling of 13087039518 in words is "thirteen billion, eighty-seven million, thirty-nine thousand, five hundred eighteen".