6402896648 has 32 divisors (see below), whose sum is σ = 12218774400. Its totient is φ = 3144644928.

The previous prime is 6402896641. The next prime is 6402896681. The reversal of 6402896648 is 8466982046.

It is a self number, because there is not a number n which added to its sum of digits gives 6402896648.

It is not an unprimeable number, because it can be changed into a prime (6402896641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 666890 + ... + 676422.

It is an arithmetic number, because the mean of its divisors is an integer number (381836700).

Almost surely, 2^6402896648 is an apocalyptic number.

It is an amenable number.

6402896648 is a deficient number, since it is larger than the sum of its proper divisors (5815877752).

6402896648 is a wasteful number, since it uses less digits than its factorization.

6402896648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11021 (or 11017 counting only the distinct ones).

The product of its (nonzero) digits is 3981312, while the sum is 53.

The square root of 6402896648 is about 80018.1020019845. The cubic root of 6402896648 is about 1856.9155963848.

The spelling of 6402896648 in words is "six billion, four hundred two million, eight hundred ninety-six thousand, six hundred forty-eight".