992717320787 has 2 divisors, whose sum is σ = 992717320788. Its totient is φ = 992717320786.

The previous prime is 992717320753. The next prime is 992717320813. The reversal of 992717320787 is 787023717299.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 992717320787 - 2³² = 988422353491 is a prime.

It is not a weakly prime, because it can be changed into another prime (992717320087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496358660393 + 496358660394.

It is an arithmetic number, because the mean of its divisors is an integer number (496358660394).

Almost surely, 2^992717320787 is an apocalyptic number.

992717320787 is a deficient number, since it is larger than the sum of its proper divisors (1).

992717320787 is an equidigital number, since it uses as much as digits as its factorization.

992717320787 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18670176, while the sum is 62.

The spelling of 992717320787 in words is "nine hundred ninety-two billion, seven hundred seventeen million, three hundred twenty thousand, seven hundred eighty-seven".