678545030 has 8 divisors (see below), whose sum is σ = 1221381072. Its totient is φ = 271418008.

The previous prime is 678544981. The next prime is 678545033. The reversal of 678545030 is 30545876.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (678545033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33927242 + ... + 33927261.

It is an arithmetic number, because the mean of its divisors is an integer number (152672634).

Almost surely, 2^678545030 is an apocalyptic number.

678545030 is a deficient number, since it is larger than the sum of its proper divisors (542836042).

678545030 is a wasteful number, since it uses less digits than its factorization.

678545030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67854510.

The product of its (nonzero) digits is 100800, while the sum is 38.

The square root of 678545030 is about 26048.8969056273. The cubic root of 678545030 is about 878.7383046911.

It can be divided in two parts, 6785 and 45030, that added together give a palindrome (51815).

The spelling of 678545030 in words is "six hundred seventy-eight million, five hundred forty-five thousand, thirty".