7768399799 has 16 divisors (see below), whose sum is σ = 8206349760. Its totient is φ = 7338988800.

The previous prime is 7768399789. The next prime is 7768399811. The reversal of 7768399799 is 9979938677.

It is a cyclic number.

It is not a de Polignac number, because 7768399799 - 2⁴ = 7768399783 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7768399729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2661689 + ... + 2664605.

It is an arithmetic number, because the mean of its divisors is an integer number (512896860).

Almost surely, 2^7768399799 is an apocalyptic number.

7768399799 is a deficient number, since it is larger than the sum of its proper divisors (437949961).

7768399799 is a wasteful number, since it uses less digits than its factorization.

7768399799 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4330.

The product of its digits is 324060912, while the sum is 74.

The square root of 7768399799 is about 88138.5261903102. The cubic root of 7768399799 is about 1980.5106834107.

The spelling of 7768399799 in words is "seven billion, seven hundred sixty-eight million, three hundred ninety-nine thousand, seven hundred ninety-nine".