672642513839 has 2 divisors, whose sum is σ = 672642513840. Its totient is φ = 672642513838.

The previous prime is 672642513821. The next prime is 672642513901. The reversal of 672642513839 is 938315246276.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 672642513839 - 2²⁰ = 672641465263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (672642516839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336321256919 + 336321256920.

It is an arithmetic number, because the mean of its divisors is an integer number (336321256920).

Almost surely, 2^672642513839 is an apocalyptic number.

672642513839 is a deficient number, since it is larger than the sum of its proper divisors (1).

672642513839 is an equidigital number, since it uses as much as digits as its factorization.

672642513839 is an evil number, because the sum of its binary digits is even.

The product of its digits is 13063680, while the sum is 56.

The spelling of 672642513839 in words is "six hundred seventy-two billion, six hundred forty-two million, five hundred thirteen thousand, eight hundred thirty-nine".