679551955319 has 2 divisors, whose sum is σ = 679551955320. Its totient is φ = 679551955318.

The previous prime is 679551955307. The next prime is 679551955339. The reversal of 679551955319 is 913559155976.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-679551955319 is a prime.

It is a super-2 number, since 2×679551955319² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679551955339) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339775977659 + 339775977660.

It is an arithmetic number, because the mean of its divisors is an integer number (339775977660).

Almost surely, 2^679551955319 is an apocalyptic number.

679551955319 is a deficient number, since it is larger than the sum of its proper divisors (1).

679551955319 is an equidigital number, since it uses as much as digits as its factorization.

679551955319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 57408750, while the sum is 65.

The spelling of 679551955319 in words is "six hundred seventy-nine billion, five hundred fifty-one million, nine hundred fifty-five thousand, three hundred nineteen".