678424031625 has 64 divisors (see below), whose sum is σ = 1168137734400. Its totient is φ = 349255872000.

The previous prime is 678424031603. The next prime is 678424031651. The reversal of 678424031625 is 526130424876.

It is not a de Polignac number, because 678424031625 - 2¹⁸ = 678423769481 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61340346 + ... + 61351404.

It is an arithmetic number, because the mean of its divisors is an integer number (18252152100).

Almost surely, 2^678424031625 is an apocalyptic number.

It is an amenable number.

678424031625 is a deficient number, since it is larger than the sum of its proper divisors (489713702775).

678424031625 is a wasteful number, since it uses less digits than its factorization.

678424031625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16747 (or 16737 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 678424031625 in words is "six hundred seventy-eight billion, four hundred twenty-four million, thirty-one thousand, six hundred twenty-five".