672636042643 has 2 divisors, whose sum is σ = 672636042644. Its totient is φ = 672636042642.

The previous prime is 672636042623. The next prime is 672636042649. The reversal of 672636042643 is 346240636276.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 672636042643 - 2⁹ = 672636042131 is a prime.

It is not a weakly prime, because it can be changed into another prime (672636042649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336318021321 + 336318021322.

It is an arithmetic number, because the mean of its divisors is an integer number (336318021322).

Almost surely, 2^672636042643 is an apocalyptic number.

672636042643 is a deficient number, since it is larger than the sum of its proper divisors (1).

672636042643 is an equidigital number, since it uses as much as digits as its factorization.

672636042643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 49.

The spelling of 672636042643 in words is "six hundred seventy-two billion, six hundred thirty-six million, forty-two thousand, six hundred forty-three".