679021091179 has 2 divisors, whose sum is σ = 679021091180. Its totient is φ = 679021091178.

The previous prime is 679021091137. The next prime is 679021091209. The reversal of 679021091179 is 971190120976.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-679021091179 is a prime.

It is a super-2 number, since 2×679021091179² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (679021091479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339510545589 + 339510545590.

It is an arithmetic number, because the mean of its divisors is an integer number (339510545590).

Almost surely, 2^679021091179 is an apocalyptic number.

679021091179 is a deficient number, since it is larger than the sum of its proper divisors (1).

679021091179 is an equidigital number, since it uses as much as digits as its factorization.

679021091179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 428652, while the sum is 52.

The spelling of 679021091179 in words is "six hundred seventy-nine billion, twenty-one million, ninety-one thousand, one hundred seventy-nine".