7646256366625 has 16 divisors (see below), whose sum is σ = 9631710466560. Its totient is φ = 6059836810800.

The previous prime is 7646256366613. The next prime is 7646256366733. The reversal of 7646256366625 is 5266636526467.

It is a de Polignac number, because none of the positive numbers 2^k-7646256366625 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 285827985 + ... + 285854734.

It is an arithmetic number, because the mean of its divisors is an integer number (601981904160).

Almost surely, 2^{7646256366625} is an apocalyptic number.

It is an amenable number.

7646256366625 is a deficient number, since it is larger than the sum of its proper divisors (1985454099935).

7646256366625 is a wasteful number, since it uses less digits than its factorization.

7646256366625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571682841 (or 571682831 counting only the distinct ones).

The product of its digits is 391910400, while the sum is 64.

The spelling of 7646256366625 in words is "seven trillion, six hundred forty-six billion, two hundred fifty-six million, three hundred sixty-six thousand, six hundred twenty-five".