7321716231631 has 2 divisors, whose sum is σ = 7321716231632. Its totient is φ = 7321716231630.

The previous prime is 7321716231611. The next prime is 7321716231667. The reversal of 7321716231631 is 1361326171237.

It is a weak prime.

It is an emirp because it is prime and its reverse (1361326171237) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7321716231631 - 2⁹ = 7321716231119 is a prime.

It is a super-2 number, since 2×7321716231631² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7321716231611) 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, 3660858115815 + 3660858115816.

It is an arithmetic number, because the mean of its divisors is an integer number (3660858115816).

Almost surely, 2^{7321716231631} is an apocalyptic number.

7321716231631 is a deficient number, since it is larger than the sum of its proper divisors (1).

7321716231631 is an equidigital number, since it uses as much as digits as its factorization.

7321716231631 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 190512, while the sum is 43.

The spelling of 7321716231631 in words is "seven trillion, three hundred twenty-one billion, seven hundred sixteen million, two hundred thirty-one thousand, six hundred thirty-one".