678361050 has 36 divisors (see below), whose sum is σ = 1822531230. Its totient is φ = 180896160.

The previous prime is 678361049. The next prime is 678361063. The reversal of 678361050 is 50163876.

It can be written as a sum of positive squares in 3 ways, for example, as 620159409 + 58201641 = 24903^2 + 7629^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 678360996 and 678361014.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 753285 + ... + 754184.

Almost surely, 2^678361050 is an apocalyptic number.

678361050 is an abundant number, since it is smaller than the sum of its proper divisors (1144170180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

678361050 is a wasteful number, since it uses less digits than its factorization.

678361050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507487 (or 1507479 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 678361050 is about 26045.3652306893. The cubic root of 678361050 is about 878.6588774460.

It can be divided in two parts, 67836 and 1050, that added together give a palindrome (68886).

The spelling of 678361050 in words is "six hundred seventy-eight million, three hundred sixty-one thousand, fifty".