7668654625 has 8 divisors (see below), whose sum is σ = 9570481128. Its totient is φ = 6134923600.

The previous prime is 7668654569. The next prime is 7668654649. The reversal of 7668654625 is 5264568667.

It can be written as a sum of positive squares in 4 ways, for example, as 2351474064 + 5317180561 = 48492^2 + 72919^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7668654625 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30674494 + ... + 30674743.

It is an arithmetic number, because the mean of its divisors is an integer number (1196310141).

Almost surely, 2^7668654625 is an apocalyptic number.

It is an amenable number.

7668654625 is a deficient number, since it is larger than the sum of its proper divisors (1901826503).

7668654625 is an equidigital number, since it uses as much as digits as its factorization.

7668654625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61349252 (or 61349242 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 55.

The square root of 7668654625 is about 87570.8548833457. The cubic root of 7668654625 is about 1971.9976493909.

The spelling of 7668654625 in words is "seven billion, six hundred sixty-eight million, six hundred fifty-four thousand, six hundred twenty-five".