7668797525 has 6 divisors (see below), whose sum is σ = 9509308962. Its totient is φ = 6135038000.

The previous prime is 7668797519. The next prime is 7668797557. The reversal of 7668797525 is 5257978667.

It can be written as a sum of positive squares in 3 ways, for example, as 151560721 + 7517236804 = 12311^2 + 86702^2 .

It is a de Polignac number, because none of the positive numbers 2^k-7668797525 is a prime.

It is a super-2 number, since 2×7668797525² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent 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 5 ways as a sum of consecutive naturals, for example, 153375926 + ... + 153375975.

It is an arithmetic number, because the mean of its divisors is an integer number (1584884827).

Almost surely, 2^7668797525 is an apocalyptic number.

It is an amenable number.

7668797525 is a deficient number, since it is larger than the sum of its proper divisors (1840511437).

7668797525 is a wasteful number, since it uses less digits than its factorization.

7668797525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306751911 (or 306751906 counting only the distinct ones).

The product of its digits is 44452800, while the sum is 62.

The square root of 7668797525 is about 87571.6707902733. The cubic root of 7668797525 is about 1972.0098982459.

The spelling of 7668797525 in words is "seven billion, six hundred sixty-eight million, seven hundred ninety-seven thousand, five hundred twenty-five".