678818152 has 8 divisors (see below), whose sum is σ = 1272784050. Its totient is φ = 339409072.

The previous prime is 678818141. The next prime is 678818201. The reversal of 678818152 is 251818876.

678818152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 640798596 + 38019556 = 25314^2 + 6166^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a hoax number, since the sum of its digits (46) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42426127 + ... + 42426142.

Almost surely, 2^678818152 is an apocalyptic number.

It is an amenable number.

678818152 is a deficient number, since it is larger than the sum of its proper divisors (593965898).

678818152 is a wasteful number, since it uses less digits than its factorization.

678818152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84852275 (or 84852271 counting only the distinct ones).

The product of its digits is 215040, while the sum is 46.

The square root of 678818152 is about 26054.1388650633. The cubic root of 678818152 is about 878.8561895568.

The spelling of 678818152 in words is "six hundred seventy-eight million, eight hundred eighteen thousand, one hundred fifty-two".