680360057249 has 4 divisors (see below), whose sum is σ = 680388599364. Its totient is φ = 680331515136.

The previous prime is 680360057243. The next prime is 680360057323. The reversal of 680360057249 is 942750063086.

It is a happy number.

680360057249 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 169431024400 + 510929032849 = 411620^2 + 714793^2 .

It is a cyclic number.

It is not a de Polignac number, because 680360057249 - 2⁸ = 680360056993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 680360057197 and 680360057206.

It is not an unprimeable number, because it can be changed into a prime (680360057243) 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, 14235272 + ... + 14282985.

It is an arithmetic number, because the mean of its divisors is an integer number (170097149841).

Almost surely, 2^680360057249 is an apocalyptic number.

It is an amenable number.

680360057249 is a deficient number, since it is larger than the sum of its proper divisors (28542115).

680360057249 is a wasteful number, since it uses less digits than its factorization.

680360057249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28542114.

The product of its (nonzero) digits is 2177280, while the sum is 50.

The spelling of 680360057249 in words is "six hundred eighty billion, three hundred sixty million, fifty-seven thousand, two hundred forty-nine".