676856268245 has 16 divisors (see below), whose sum is σ = 814837752432. Its totient is φ = 539746406400.

The previous prime is 676856268241. The next prime is 676856268247. The reversal of 676856268245 is 542862658676.

It can be written as a sum of positive squares in 8 ways, for example, as 84068682916 + 592787585329 = 289946^2 + 769927^2 .

It is not a de Polignac number, because 676856268245 - 2² = 676856268241 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676856268241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3449909 + ... + 3640821.

It is an arithmetic number, because the mean of its divisors is an integer number (50927359527).

Almost surely, 2^676856268245 is an apocalyptic number.

It is an amenable number.

676856268245 is a deficient number, since it is larger than the sum of its proper divisors (137981484187).

676856268245 is a wasteful number, since it uses less digits than its factorization.

676856268245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193192.

The product of its digits is 232243200, while the sum is 65.

The spelling of 676856268245 in words is "six hundred seventy-six billion, eight hundred fifty-six million, two hundred sixty-eight thousand, two hundred forty-five".