668272625843 has 2 divisors, whose sum is σ = 668272625844. Its totient is φ = 668272625842.

The previous prime is 668272625827. The next prime is 668272625861. The reversal of 668272625843 is 348526272866.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 668272625843 - 2⁴ = 668272625827 is a prime.

It is not a weakly prime, because it can be changed into another prime (668272625893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 334136312921 + 334136312922.

It is an arithmetic number, because the mean of its divisors is an integer number (334136312922).

Almost surely, 2^668272625843 is an apocalyptic number.

668272625843 is a deficient number, since it is larger than the sum of its proper divisors (1).

668272625843 is an equidigital number, since it uses as much as digits as its factorization.

668272625843 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46448640, while the sum is 59.

The spelling of 668272625843 in words is "six hundred sixty-eight billion, two hundred seventy-two million, six hundred twenty-five thousand, eight hundred forty-three".