726135943679 has 2 divisors, whose sum is σ = 726135943680. Its totient is φ = 726135943678.

The previous prime is 726135943651. The next prime is 726135943733. The reversal of 726135943679 is 976349531627.

726135943679 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-726135943679 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (726135943619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 363067971839 + 363067971840.

It is an arithmetic number, because the mean of its divisors is an integer number (363067971840).

Almost surely, 2^726135943679 is an apocalyptic number.

726135943679 is a deficient number, since it is larger than the sum of its proper divisors (1).

726135943679 is an equidigital number, since it uses as much as digits as its factorization.

726135943679 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51438240, while the sum is 62.

The spelling of 726135943679 in words is "seven hundred twenty-six billion, one hundred thirty-five million, nine hundred forty-three thousand, six hundred seventy-nine".