721710275963 has 2 divisors, whose sum is σ = 721710275964. Its totient is φ = 721710275962.

The previous prime is 721710275899. The next prime is 721710276017. The reversal of 721710275963 is 369572017127.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 721710275963 - 2⁶ = 721710275899 is a prime.

It is not a weakly prime, because it can be changed into another prime (721710271963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360855137981 + 360855137982.

It is an arithmetic number, because the mean of its divisors is an integer number (360855137982).

Almost surely, 2^721710275963 is an apocalyptic number.

721710275963 is a deficient number, since it is larger than the sum of its proper divisors (1).

721710275963 is an equidigital number, since it uses as much as digits as its factorization.

721710275963 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1111320, while the sum is 50.

The spelling of 721710275963 in words is "seven hundred twenty-one billion, seven hundred ten million, two hundred seventy-five thousand, nine hundred sixty-three".