678414590725 has 12 divisors (see below), whose sum is σ = 844585630560. Its totient is φ = 540569390000.

The previous prime is 678414590713. The next prime is 678414590731. The reversal of 678414590725 is 527095414876.

It is a de Polignac number, because none of the positive numbers 2^k-678414590725 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 678414590725.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 54050665 + ... + 54063214.

It is an arithmetic number, because the mean of its divisors is an integer number (70382135880).

Almost surely, 2^678414590725 is an apocalyptic number.

It is an amenable number.

678414590725 is a deficient number, since it is larger than the sum of its proper divisors (166171039835).

678414590725 is a wasteful number, since it uses less digits than its factorization.

678414590725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108114140 (or 108114135 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 58.

The spelling of 678414590725 in words is "six hundred seventy-eight billion, four hundred fourteen million, five hundred ninety thousand, seven hundred twenty-five".