6395996761 has 32 divisors (see below), whose sum is σ = 8181202176. Its totient is φ = 4854912000.

The previous prime is 6395996753. The next prime is 6395996821. The reversal of 6395996761 is 1676995936.

It is a cyclic number.

It is not a de Polignac number, because 6395996761 - 2³ = 6395996753 is a prime.

It is a super-2 number, since 2×6395996761² = 81817549133444982242, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 6395996761.

It is not an unprimeable number, because it can be changed into a prime (6395996861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2969661 + ... + 2971813.

It is an arithmetic number, because the mean of its divisors is an integer number (255662568).

Almost surely, 2^6395996761 is an apocalyptic number.

It is an amenable number.

6395996761 is a deficient number, since it is larger than the sum of its proper divisors (1785205415).

6395996761 is a wasteful number, since it uses less digits than its factorization.

6395996761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3153.

The product of its digits is 16533720, while the sum is 61.

The square root of 6395996761 is about 79974.9758424471. The cubic root of 6395996761 is about 1856.2483404233.

The spelling of 6395996761 in words is "six billion, three hundred ninety-five million, nine hundred ninety-six thousand, seven hundred sixty-one".