679265022257 has 4 divisors (see below), whose sum is σ = 679817720820. Its totient is φ = 678712323696.

The previous prime is 679265022239. The next prime is 679265022263. The reversal of 679265022257 is 752220562976.

679265022257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 598037742241 + 81227280016 = 773329^2 + 285004^2 .

It is a cyclic number.

It is not a de Polignac number, because 679265022257 - 2³⁶ = 610545545521 is a prime.

It is a super-2 number, since 2×679265022257² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 679265022199 and 679265022208.

It is not an unprimeable number, because it can be changed into a prime (679265022277) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 276347438 + ... + 276349895.

It is an arithmetic number, because the mean of its divisors is an integer number (169954430205).

Almost surely, 2^679265022257 is an apocalyptic number.

It is an amenable number.

679265022257 is a deficient number, since it is larger than the sum of its proper divisors (552698563).

679265022257 is a wasteful number, since it uses less digits than its factorization.

679265022257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552698562.

The product of its (nonzero) digits is 6350400, while the sum is 53.

The spelling of 679265022257 in words is "six hundred seventy-nine billion, two hundred sixty-five million, twenty-two thousand, two hundred fifty-seven".