7966759939 has 4 divisors (see below), whose sum is σ = 7967639680. Its totient is φ = 7965880200.

The previous prime is 7966759919. The next prime is 7966759961. The reversal of 7966759939 is 9399576697.

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 7966759939 - 2⁷ = 7966759811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7966759919) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 426144 + ... + 444445.

It is an arithmetic number, because the mean of its divisors is an integer number (1991909920).

Almost surely, 2^7966759939 is an apocalyptic number.

7966759939 is a deficient number, since it is larger than the sum of its proper divisors (879741).

7966759939 is an equidigital number, since it uses as much as digits as its factorization.

7966759939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879740.

The product of its digits is 173604060, while the sum is 70.

The square root of 7966759939 is about 89256.7080896444. The cubic root of 7966759939 is about 1997.2261495721.

The spelling of 7966759939 in words is "seven billion, nine hundred sixty-six million, seven hundred fifty-nine thousand, nine hundred thirty-nine".