996782290631 has 2 divisors, whose sum is σ = 996782290632. Its totient is φ = 996782290630.

The previous prime is 996782290583. The next prime is 996782290639. The reversal of 996782290631 is 136092287699.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (136092287699) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-996782290631 is a prime.

It is a super-2 number, since 2×996782290631² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996782290639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 498391145315 + 498391145316.

It is an arithmetic number, because the mean of its divisors is an integer number (498391145316).

Almost surely, 2^996782290631 is an apocalyptic number.

996782290631 is a deficient number, since it is larger than the sum of its proper divisors (1).

996782290631 is an equidigital number, since it uses as much as digits as its factorization.

996782290631 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17635968, while the sum is 62.

The spelling of 996782290631 in words is "nine hundred ninety-six billion, seven hundred eighty-two million, two hundred ninety thousand, six hundred thirty-one".