679875547157 has 2 divisors, whose sum is σ = 679875547158. Its totient is φ = 679875547156.

The previous prime is 679875547139. The next prime is 679875547171. The reversal of 679875547157 is 751745578976.

It is a happy number.

679875547157 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 669632892721 + 10242654436 = 818311^2 + 101206^2 .

It is a cyclic number.

It is not a de Polignac number, because 679875547157 - 2⁶ = 679875547093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (679875547357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 339937773578 + 339937773579.

It is an arithmetic number, because the mean of its divisors is an integer number (339937773579).

Almost surely, 2^679875547157 is an apocalyptic number.

It is an amenable number.

679875547157 is a deficient number, since it is larger than the sum of its proper divisors (1).

679875547157 is an equidigital number, since it uses as much as digits as its factorization.

679875547157 is an evil number, because the sum of its binary digits is even.

The product of its digits is 518616000, while the sum is 71.

The spelling of 679875547157 in words is "six hundred seventy-nine billion, eight hundred seventy-five million, five hundred forty-seven thousand, one hundred fifty-seven".