679291333839 has 6 divisors (see below), whose sum is σ = 981198593336. Its totient is φ = 452860889220.

The previous prime is 679291333823. The next prime is 679291333849. The reversal of 679291333839 is 938333192976.

679291333839 is a `hidden beast` number, since 6 + 7 + 9 + 291 + 3 + 338 + 3 + 9 = 666.

It is not a de Polignac number, because 679291333839 - 2⁴ = 679291333823 is a prime.

It is a super-2 number, since 2×679291333839² (a number of 24 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 (679291333849) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 37738407427 + ... + 37738407444.

Almost surely, 2^679291333839 is an apocalyptic number.

679291333839 is a deficient number, since it is larger than the sum of its proper divisors (301907259497).

679291333839 is a wasteful number, since it uses less digits than its factorization.

679291333839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75476814877 (or 75476814874 counting only the distinct ones).

The product of its digits is 39680928, while the sum is 63.

The spelling of 679291333839 in words is "six hundred seventy-nine billion, two hundred ninety-one million, three hundred thirty-three thousand, eight hundred thirty-nine".