6396795720 has 128 divisors (see below), whose sum is σ = 24368774400. Its totient is φ = 1462123008.

The previous prime is 6396795661. The next prime is 6396795763. The reversal of 6396795720 is 275976936.

6396795720 is a `hidden beast` number, since 6 + 3 + 9 + 67 + 9 + 572 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 415509 + ... + 430628.

It is an arithmetic number, because the mean of its divisors is an integer number (190381050).

Almost surely, 2^6396795720 is an apocalyptic number.

6396795720 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6396795720 is an abundant number, since it is smaller than the sum of its proper divisors (17971978680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6396795720 is a wasteful number, since it uses less digits than its factorization.

6396795720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 846164 (or 846154 counting only the distinct ones).

The product of its (nonzero) digits is 4286520, while the sum is 54.

The square root of 6396795720 is about 79979.9707426803. The cubic root of 6396795720 is about 1856.3256285889.

The spelling of 6396795720 in words is "six billion, three hundred ninety-six million, seven hundred ninety-five thousand, seven hundred twenty".