6311396587 has 4 divisors (see below), whose sum is σ = 6338484360. Its totient is φ = 6284308816.

The previous prime is 6311396579. The next prime is 6311396593. The reversal of 6311396587 is 7856931136.

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

It is a cyclic number.

It is not a de Polignac number, because 6311396587 - 2³ = 6311396579 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 6311396587.

It is not an unprimeable number, because it can be changed into a prime (6311394587) 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, 13543537 + ... + 13544002.

It is an arithmetic number, because the mean of its divisors is an integer number (1584621090).

Almost surely, 2^6311396587 is an apocalyptic number.

6311396587 is a deficient number, since it is larger than the sum of its proper divisors (27087773).

6311396587 is a wasteful number, since it uses less digits than its factorization.

6311396587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27087772.

The product of its digits is 816480, while the sum is 49.

The square root of 6311396587 is about 79444.2986437668. The cubic root of 6311396587 is about 1848.0277581325.

The spelling of 6311396587 in words is "six billion, three hundred eleven million, three hundred ninety-six thousand, five hundred eighty-seven".