6311399986 has 8 divisors (see below), whose sum is σ = 9722967660. Its totient is φ = 3070410768.

The previous prime is 6311399977. The next prime is 6311400041. The reversal of 6311399986 is 6899931136.

It can be written as a sum of positive squares in 2 ways, for example, as 6283574361 + 27825625 = 79269^2 + 5275^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42644521 + ... + 42644668.

Almost surely, 2^6311399986 is an apocalyptic number.

6311399986 is a deficient number, since it is larger than the sum of its proper divisors (3411567674).

6311399986 is a wasteful number, since it uses less digits than its factorization.

6311399986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85289228.

The product of its digits is 1889568, while the sum is 55.

The square root of 6311399986 is about 79444.3200361108. The cubic root of 6311399986 is about 1848.0280898840.

The spelling of 6311399986 in words is "six billion, three hundred eleven million, three hundred ninety-nine thousand, nine hundred eighty-six".