7992959999 has 4 divisors (see below), whose sum is σ = 7993529880. Its totient is φ = 7992390120.

The previous prime is 7992959987. The next prime is 7992960047. The reversal of 7992959999 is 9999592997.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7992959999 - 2²⁴ = 7976182783 is a prime.

It is a super-2 number, since 2×7992959999² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7992959399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263357 + ... + 292134.

It is an arithmetic number, because the mean of its divisors is an integer number (1998382470).

Almost surely, 2^7992959999 is an apocalyptic number.

7992959999 is a deficient number, since it is larger than the sum of its proper divisors (569881).

7992959999 is a wasteful number, since it uses less digits than its factorization.

7992959999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 569880.

The product of its digits is 334807830, while the sum is 77.

The square root of 7992959999 is about 89403.3556361281. The cubic root of 7992959999 is about 1999.4131610769.

The spelling of 7992959999 in words is "seven billion, nine hundred ninety-two million, nine hundred fifty-nine thousand, nine hundred ninety-nine".