668272625862 has 8 divisors (see below), whose sum is σ = 1336545251736. Its totient is φ = 222757541952.

The previous prime is 668272625861. The next prime is 668272625893. The reversal of 668272625862 is 268526272866.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

668272625862 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 668272625796 and 668272625805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (668272625861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 55689385483 + ... + 55689385494.

It is an arithmetic number, because the mean of its divisors is an integer number (167068156467).

Almost surely, 2^668272625862 is an apocalyptic number.

668272625862 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

668272625862 is a wasteful number, since it uses less digits than its factorization.

668272625862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111378770982.

The product of its digits is 46448640, while the sum is 60.

The spelling of 668272625862 in words is "six hundred sixty-eight billion, two hundred seventy-two million, six hundred twenty-five thousand, eight hundred sixty-two".