678413655 has 24 divisors (see below), whose sum is σ = 1177692048. Its totient is φ = 361274496.

The previous prime is 678413629. The next prime is 678413663. The reversal of 678413655 is 556314876.

It is not a de Polignac number, because 678413655 - 2⁸ = 678413399 is a prime.

It is a super-3 number, since 3×678413655³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 678413655.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 19699 + ... + 41771.

It is an arithmetic number, because the mean of its divisors is an integer number (49070502).

Almost surely, 2^678413655 is an apocalyptic number.

678413655 is a deficient number, since it is larger than the sum of its proper divisors (499278393).

678413655 is a wasteful number, since it uses less digits than its factorization.

678413655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22767 (or 22764 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 678413655 is about 26046.3750836849. The cubic root of 678413655 is about 878.6815893708.

The spelling of 678413655 in words is "six hundred seventy-eight million, four hundred thirteen thousand, six hundred fifty-five".