6268731648 has 36 divisors (see below), whose sum is σ = 16683970128. Its totient is φ = 2089576960.

The previous prime is 6268731647. The next prime is 6268731659. The reversal of 6268731648 is 8461378626.

It is a self number, because there is not a number n which added to its sum of digits gives 6268731648.

It is not an unprimeable number, because it can be changed into a prime (6268731641) 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, 4080438 + ... + 4081973.

Almost surely, 2^6268731648 is an apocalyptic number.

It is an amenable number.

6268731648 is an abundant number, since it is smaller than the sum of its proper divisors (10415238480).

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

6268731648 is an equidigital number, since it uses as much as digits as its factorization.

6268731648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8162430 (or 8162416 counting only the distinct ones).

The product of its digits is 2322432, while the sum is 51.

The square root of 6268731648 is about 79175.3222159531. The cubic root of 6268731648 is about 1843.8541267969.

The spelling of 6268731648 in words is "six billion, two hundred sixty-eight million, seven hundred thirty-one thousand, six hundred forty-eight".