7659287668 has 24 divisors (see below), whose sum is σ = 13588412040. Its totient is φ = 3777100800.

The previous prime is 7659287653. The next prime is 7659287683. The reversal of 7659287668 is 8667829567.

It is an interprime number because it is at equal distance from previous prime (7659287653) and next prime (7659287683).

It can be written as a sum of positive squares in 4 ways, for example, as 679019364 + 6980268304 = 26058^2 + 83548^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115930 + ... + 169582.

It is an arithmetic number, because the mean of its divisors is an integer number (566183835).

Almost surely, 2^7659287668 is an apocalyptic number.

It is an amenable number.

7659287668 is a deficient number, since it is larger than the sum of its proper divisors (5929124372).

7659287668 is a wasteful number, since it uses less digits than its factorization.

7659287668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54147 (or 54145 counting only the distinct ones).

The product of its digits is 60963840, while the sum is 64.

The square root of 7659287668 is about 87517.3563814630. The cubic root of 7659287668 is about 1971.1944166650.

The spelling of 7659287668 in words is "seven billion, six hundred fifty-nine million, two hundred eighty-seven thousand, six hundred sixty-eight".