7999740888 has 16 divisors (see below), whose sum is σ = 19999352280. Its totient is φ = 2666580288.

The previous prime is 7999740877. The next prime is 7999740893. The reversal of 7999740888 is 8880479997.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 166661245 + ... + 166661292.

Almost surely, 2^7999740888 is an apocalyptic number.

It is an amenable number.

7999740888 is an abundant number, since it is smaller than the sum of its proper divisors (11999611392).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7999740888 is a wasteful number, since it uses less digits than its factorization.

7999740888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 333322546 (or 333322542 counting only the distinct ones).

The product of its (nonzero) digits is 73156608, while the sum is 69.

The square root of 7999740888 is about 89441.2706081482. The cubic root of 7999740888 is about 1999.9784071002.

The spelling of 7999740888 in words is "seven billion, nine hundred ninety-nine million, seven hundred forty thousand, eight hundred eighty-eight".