678051315 has 12 divisors (see below), whose sum is σ = 1175289024. Its totient is φ = 361627344.

The previous prime is 678051299. The next prime is 678051329. The reversal of 678051315 is 513150876.

678051315 is a `hidden beast` number, since 67 + 80 + 513 + 1 + 5 = 666.

It is not a de Polignac number, because 678051315 - 2⁴ = 678051299 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 678051315.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7533859 + ... + 7533948.

It is an arithmetic number, because the mean of its divisors is an integer number (97940752).

Almost surely, 2^678051315 is an apocalyptic number.

678051315 is a deficient number, since it is larger than the sum of its proper divisors (497237709).

678051315 is a wasteful number, since it uses less digits than its factorization.

678051315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15067818 (or 15067815 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 36.

The square root of 678051315 is about 26039.4184842903. The cubic root of 678051315 is about 878.5251272163.

The spelling of 678051315 in words is "six hundred seventy-eight million, fifty-one thousand, three hundred fifteen".