7689927808 has 16 divisors (see below), whose sum is σ = 15319778310. Its totient is φ = 3844963840.

The previous prime is 7689927803. The next prime is 7689927827. The reversal of 7689927808 is 8087299867.

It can be written as a sum of positive squares in only one way, i.e., 5415782464 + 2274145344 = 73592^2 + 47688^2 .

It is a tau number, because it is divible by the number of its divisors (16).

It is a Harshad number since it is a multiple of its sum of digits (64).

It is a self number, because there is not a number n which added to its sum of digits gives 7689927808.

It is not an unprimeable number, because it can be changed into a prime (7689927803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30038653 + ... + 30038908.

Almost surely, 2^7689927808 is an apocalyptic number.

It is an amenable number.

7689927808 is a deficient number, since it is larger than the sum of its proper divisors (7629850502).

7689927808 is an equidigital number, since it uses as much as digits as its factorization.

7689927808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60077575 (or 60077563 counting only the distinct ones).

The product of its (nonzero) digits is 24385536, while the sum is 64.

The square root of 7689927808 is about 87692.2334531400. The cubic root of 7689927808 is about 1973.8194350712.

The spelling of 7689927808 in words is "seven billion, six hundred eighty-nine million, nine hundred twenty-seven thousand, eight hundred eight".