11713940587 has 4 divisors (see below), whose sum is σ = 11717224456. Its totient is φ = 11710656720.

The previous prime is 11713940573. The next prime is 11713940639. The reversal of 11713940587 is 78504931711.

11713940587 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78504931711 = 35447 ⋅2214713.

It is a cyclic number.

It is not a de Polignac number, because 11713940587 - 2²⁷ = 11579722859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11713941587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1636578 + ... + 1643719.

It is an arithmetic number, because the mean of its divisors is an integer number (2929306114).

Almost surely, 2^11713940587 is an apocalyptic number.

11713940587 is a deficient number, since it is larger than the sum of its proper divisors (3283869).

11713940587 is an equidigital number, since it uses as much as digits as its factorization.

11713940587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3283868.

The product of its (nonzero) digits is 211680, while the sum is 46.

The spelling of 11713940587 in words is "eleven billion, seven hundred thirteen million, nine hundred forty thousand, five hundred eighty-seven".