678708272627 has 16 divisors (see below), whose sum is σ = 890717625600. Its totient is φ = 501028662240.

The previous prime is 678708272609. The next prime is 678708272651. The reversal of 678708272627 is 726272807876.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-678708272627 is a prime.

It is a super-2 number, since 2×678708272627² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 678708272627.

It is not an unprimeable number, because it can be changed into a prime (678708272677) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231956252 + ... + 231959177.

It is an arithmetic number, because the mean of its divisors is an integer number (55669851600).

Almost surely, 2^678708272627 is an apocalyptic number.

678708272627 is a deficient number, since it is larger than the sum of its proper divisors (212009352973).

678708272627 is a wasteful number, since it uses less digits than its factorization.

678708272627 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463915466.

The product of its (nonzero) digits is 44255232, while the sum is 62.

The spelling of 678708272627 in words is "six hundred seventy-eight billion, seven hundred eight million, two hundred seventy-two thousand, six hundred twenty-seven".