7688888899 has 8 divisors (see below), whose sum is σ = 7816444160. Its totient is φ = 7561382400.

The previous prime is 7688888849. The next prime is 7688888903. The reversal of 7688888899 is 9988888867.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7688888899 - 2⁷ = 7688888771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7688888819) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 448414 + ... + 465244.

It is an arithmetic number, because the mean of its divisors is an integer number (977055520).

Almost surely, 2^7688888899 is an apocalyptic number.

7688888899 is a deficient number, since it is larger than the sum of its proper divisors (127555261).

7688888899 is a wasteful number, since it uses less digits than its factorization.

7688888899 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24381.

The product of its digits is 891813888, while the sum is 79.

The square root of 7688888899 is about 87686.3096440944. The cubic root of 7688888899 is about 1973.7305434206.

The spelling of 7688888899 in words is "seven billion, six hundred eighty-eight million, eight hundred eighty-eight thousand, eight hundred ninety-nine".