679756733999 has 4 divisors (see below), whose sum is σ = 776864838864. Its totient is φ = 582648629136.

The previous prime is 679756733989. The next prime is 679756734023. The reversal of 679756733999 is 999337657976.

679756733999 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 679756733999 - 2⁴ = 679756733983 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 (679756733959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48554052422 + ... + 48554052435.

It is an arithmetic number, because the mean of its divisors is an integer number (194216209716).

Almost surely, 2^679756733999 is an apocalyptic number.

679756733999 is a deficient number, since it is larger than the sum of its proper divisors (97108104865).

679756733999 is an equidigital number, since it uses as much as digits as its factorization.

679756733999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97108104864.

The product of its digits is 3645685260, while the sum is 80.

The spelling of 679756733999 in words is "six hundred seventy-nine billion, seven hundred fifty-six million, seven hundred thirty-three thousand, nine hundred ninety-nine".