7647256630 has 64 divisors (see below), whose sum is σ = 15072220800. Its totient is φ = 2776697856.

The previous prime is 7647256619. The next prime is 7647256649. The reversal of 7647256630 is 366527467.

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

It is a congruent number.

It is an unprimeable number.

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, 1993194 + ... + 1997026.

It is an arithmetic number, because the mean of its divisors is an integer number (235503450).

Almost surely, 2^7647256630 is an apocalyptic number.

7647256630 is a deficient number, since it is larger than the sum of its proper divisors (7424964170).

7647256630 is a wasteful number, since it uses less digits than its factorization.

7647256630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105.

The product of its (nonzero) digits is 1270080, while the sum is 46.

The square root of 7647256630 is about 87448.5942139724. The cubic root of 7647256630 is about 1970.1617730705.

The spelling of 7647256630 in words is "seven billion, six hundred forty-seven million, two hundred fifty-six thousand, six hundred thirty".