6313926778 has 16 divisors (see below), whose sum is σ = 9497948544. Its totient is φ = 3147958000.

The previous prime is 6313926737. The next prime is 6313926791. The reversal of 6313926778 is 8776293136.

It is a happy number.

It is a super-2 number, since 2×6313926778² = 79731342715890922568, which contains 22 as substring.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 1145028 + ... + 1150528.

It is an arithmetic number, because the mean of its divisors is an integer number (593621784).

Almost surely, 2^6313926778 is an apocalyptic number.

6313926778 is a deficient number, since it is larger than the sum of its proper divisors (3184021766).

6313926778 is a wasteful number, since it uses less digits than its factorization.

6313926778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7037.

The product of its digits is 2286144, while the sum is 52.

The square root of 6313926778 is about 79460.2213563491. The cubic root of 6313926778 is about 1848.2746785743.

The spelling of 6313926778 in words is "six billion, three hundred thirteen million, nine hundred twenty-six thousand, seven hundred seventy-eight".