7688977652 has 12 divisors (see below), whose sum is σ = 13466062596. Its totient is φ = 3841531200.

The previous prime is 7688977633. The next prime is 7688977661. The reversal of 7688977652 is 2567798867.

It can be written as a sum of positive squares in 2 ways, for example, as 734084836 + 6954892816 = 27094^2 + 83396^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 733553 + ... + 743960.

It is an arithmetic number, because the mean of its divisors is an integer number (1122171883).

Almost surely, 2^7688977652 is an apocalyptic number.

It is an amenable number.

7688977652 is a deficient number, since it is larger than the sum of its proper divisors (5777084944).

7688977652 is a wasteful number, since it uses less digits than its factorization.

7688977652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1478818 (or 1478816 counting only the distinct ones).

The product of its digits is 71124480, while the sum is 65.

The square root of 7688977652 is about 87686.8157250564. The cubic root of 7688977652 is about 1973.7381376619.

The spelling of 7688977652 in words is "seven billion, six hundred eighty-eight million, nine hundred seventy-seven thousand, six hundred fifty-two".