7992199745 has 12 divisors (see below), whose sum is σ = 9910000980. Its totient is φ = 6187505760.

The previous prime is 7992199739. The next prime is 7992199753. The reversal of 7992199745 is 5479912997.

It can be written as a sum of positive squares in 2 ways, for example, as 3221811121 + 4770388624 = 56761^2 + 69068^2 .

It is not a de Polignac number, because 7992199745 - 2⁸ = 7992199489 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 826850 + ... + 836459.

It is an arithmetic number, because the mean of its divisors is an integer number (825833415).

Almost surely, 2^7992199745 is an apocalyptic number.

It is an amenable number.

7992199745 is a deficient number, since it is larger than the sum of its proper divisors (1917801235).

7992199745 is a wasteful number, since it uses less digits than its factorization.

7992199745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1663376 (or 1663345 counting only the distinct ones).

The product of its digits is 12859560, while the sum is 62.

The square root of 7992199745 is about 89399.1037147465. The cubic root of 7992199745 is about 1999.3497673717.

The spelling of 7992199745 in words is "seven billion, nine hundred ninety-two million, one hundred ninety-nine thousand, seven hundred forty-five".