678051313 has 16 divisors (see below), whose sum is σ = 718502400. Its totient is φ = 638951040.

The previous prime is 678051299. The next prime is 678051329. The reversal of 678051313 is 313150876.

It is not a de Polignac number, because 678051313 - 2⁹ = 678050801 is a prime.

It is a super-2 number, since 2×678051313² = 919507166122047938, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (678051343) 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, 226893 + ... + 229861.

It is an arithmetic number, because the mean of its divisors is an integer number (44906400).

Almost surely, 2^678051313 is an apocalyptic number.

It is an amenable number.

678051313 is a deficient number, since it is larger than the sum of its proper divisors (40451087).

678051313 is a wasteful number, since it uses less digits than its factorization.

678051313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3192.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 678051313 is about 26039.4184458870. The cubic root of 678051313 is about 878.5251263525.

The spelling of 678051313 in words is "six hundred seventy-eight million, fifty-one thousand, three hundred thirteen".