679815762813 has 24 divisors (see below), whose sum is σ = 1071354385920. Its totient is φ = 411959727360.

The previous prime is 679815762781. The next prime is 679815762839. The reversal of 679815762813 is 318267518976.

It is not a de Polignac number, because 679815762813 - 2⁵ = 679815762781 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (679815762013) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 415908 + ... + 1237986.

It is an arithmetic number, because the mean of its divisors is an integer number (44639766080).

Almost surely, 2^679815762813 is an apocalyptic number.

It is an amenable number.

679815762813 is a deficient number, since it is larger than the sum of its proper divisors (391538623107).

679815762813 is a wasteful number, since it uses less digits than its factorization.

679815762813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830449 (or 830446 counting only the distinct ones).

The product of its digits is 30481920, while the sum is 63.

The spelling of 679815762813 in words is "six hundred seventy-nine billion, eight hundred fifteen million, seven hundred sixty-two thousand, eight hundred thirteen".