678113012 has 6 divisors (see below), whose sum is σ = 1186697778. Its totient is φ = 339056504.

The previous prime is 678112999. The next prime is 678113057. The reversal of 678113012 is 210311876.

It can be written as a sum of positive squares in only one way, i.e., 359633296 + 318479716 = 18964^2 + 17846^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84764123 + ... + 84764130.

It is an arithmetic number, because the mean of its divisors is an integer number (197782963).

Almost surely, 2^678113012 is an apocalyptic number.

It is an amenable number.

678113012 is a deficient number, since it is larger than the sum of its proper divisors (508584766).

678113012 is a wasteful number, since it uses less digits than its factorization.

678113012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169528257 (or 169528255 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 678113012 is about 26040.6031420165. The cubic root of 678113012 is about 878.5517725550.

Adding to 678113012 its reverse (210311876), we get a palindrome (888424888).

The spelling of 678113012 in words is "six hundred seventy-eight million, one hundred thirteen thousand, twelve".