6311168393 has 4 divisors (see below), whose sum is σ = 6314022468. Its totient is φ = 6308314320.

The previous prime is 6311168363. The next prime is 6311168401. The reversal of 6311168393 is 3938611136.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5415782464 + 895385929 = 73592^2 + 29923^2 .

It is a cyclic number.

It is not a de Polignac number, because 6311168393 - 2⁸ = 6311168137 is a prime.

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 6311168393.

It is not an unprimeable number, because it can be changed into a prime (6311168363) 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, 1423718 + ... + 1428143.

It is an arithmetic number, because the mean of its divisors is an integer number (1578505617).

Almost surely, 2^6311168393 is an apocalyptic number.

It is an amenable number.

6311168393 is a deficient number, since it is larger than the sum of its proper divisors (2854075).

6311168393 is a wasteful number, since it uses less digits than its factorization.

6311168393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2854074.

The product of its digits is 69984, while the sum is 41.

The square root of 6311168393 is about 79442.8624421351. The cubic root of 6311168393 is about 1848.0054855170.

The spelling of 6311168393 in words is "six billion, three hundred eleven million, one hundred sixty-eight thousand, three hundred ninety-three".