678484734214274 has 16 divisors (see below), whose sum is σ = 1096014622018680. Its totient is φ = 313146565950720.

The previous prime is 678484734214193. The next prime is 678484734214303. The reversal of 678484734214274 is 472412437484876.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 611609253640225 + 66875480574049 = 24730735^2 + 8177743^2 .

It is a junction number, because it is equal to n+sod(n) for n = 678484734214198 and 678484734214207.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28445834 + ... + 46541754.

Almost surely, 2^{678484734214274} is an apocalyptic number.

678484734214274 is a deficient number, since it is larger than the sum of its proper divisors (417529887804406).

678484734214274 is a wasteful number, since it uses less digits than its factorization.

678484734214274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19538005.

The product of its digits is 1618477056, while the sum is 71.

The spelling of 678484734214274 in words is "six hundred seventy-eight trillion, four hundred eighty-four billion, seven hundred thirty-four million, two hundred fourteen thousand, two hundred seventy-four".