678391580106 has 64 divisors (see below), whose sum is σ = 1509937459200. Its totient is φ = 225770760000.

The previous prime is 678391580099. The next prime is 678391580123. The reversal of 678391580106 is 601085193876.

678391580106 is a `hidden beast` number, since 6 + 78 + 391 + 5 + 80 + 106 = 666.

678391580106 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 111190456 + ... + 111196556.

It is an arithmetic number, because the mean of its divisors is an integer number (23592772800).

Almost surely, 2^678391580106 is an apocalyptic number.

678391580106 is an abundant number, since it is smaller than the sum of its proper divisors (831545879094).

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

678391580106 is a wasteful number, since it uses less digits than its factorization.

678391580106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9052 (or 9046 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 54.

The spelling of 678391580106 in words is "six hundred seventy-eight billion, three hundred ninety-one million, five hundred eighty thousand, one hundred six".