6392253664 has 24 divisors (see below), whose sum is σ = 12588146928. Its totient is φ = 3195264000.

The previous prime is 6392253643. The next prime is 6392253667. The reversal of 6392253664 is 4663522936.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6392253667) by changing a digit.

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, 103069 + ... + 152995.

It is an arithmetic number, because the mean of its divisors is an integer number (524506122).

Almost surely, 2^6392253664 is an apocalyptic number.

It is an amenable number.

6392253664 is a deficient number, since it is larger than the sum of its proper divisors (6195893264).

6392253664 is a wasteful number, since it uses less digits than its factorization.

6392253664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53938 (or 53930 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 46.

The square root of 6392253664 is about 79951.5707412931. The cubic root of 6392253664 is about 1855.8861621370.

The spelling of 6392253664 in words is "six billion, three hundred ninety-two million, two hundred fifty-three thousand, six hundred sixty-four".