678872300265 has 24 divisors (see below), whose sum is σ = 1201748416128. Its totient is φ = 354361710240.

The previous prime is 678872300263. The next prime is 678872300297. The reversal of 678872300265 is 562003278876.

678872300265 is a `hidden beast` number, since 6 + 7 + 8 + 8 + 72 + 300 + 265 = 666.

It is not a de Polignac number, because 678872300265 - 2¹ = 678872300263 is a prime.

It is not an unprimeable number, because it can be changed into a prime (678872300261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 160487791 + ... + 160492020.

It is an arithmetic number, because the mean of its divisors is an integer number (50072850672).

Almost surely, 2^678872300265 is an apocalyptic number.

It is an amenable number.

678872300265 is a deficient number, since it is larger than the sum of its proper divisors (522876115863).

678872300265 is a wasteful number, since it uses less digits than its factorization.

678872300265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320979869 (or 320979866 counting only the distinct ones).

The product of its (nonzero) digits is 6773760, while the sum is 54.

The spelling of 678872300265 in words is "six hundred seventy-eight billion, eight hundred seventy-two million, three hundred thousand, two hundred sixty-five".