13087252587 has 4 divisors (see below), whose sum is σ = 17449670120. Its totient is φ = 8724835056.

The previous prime is 13087252561. The next prime is 13087252589. The reversal of 13087252587 is 78525278031.

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

It is not a de Polignac number, because 13087252587 - 2¹⁶ = 13087187051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13087252589) 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, 2181208762 + ... + 2181208767.

It is an arithmetic number, because the mean of its divisors is an integer number (4362417530).

Almost surely, 2^13087252587 is an apocalyptic number.

13087252587 is a deficient number, since it is larger than the sum of its proper divisors (4362417533).

13087252587 is an equidigital number, since it uses as much as digits as its factorization.

13087252587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4362417532.

The product of its (nonzero) digits is 940800, while the sum is 48.

The spelling of 13087252587 in words is "thirteen billion, eighty-seven million, two hundred fifty-two thousand, five hundred eighty-seven".