992521274609 has 2 divisors, whose sum is σ = 992521274610. Its totient is φ = 992521274608.

The previous prime is 992521274533. The next prime is 992521274617. The reversal of 992521274609 is 906472125299.

992521274609 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 627580840000 + 364940434609 = 792200^2 + 604103^2 .

It is a cyclic number.

It is not a de Polignac number, because 992521274609 - 2³⁶ = 923801797873 is a prime.

It is not a weakly prime, because it can be changed into another prime (992521274639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 496260637304 + 496260637305.

It is an arithmetic number, because the mean of its divisors is an integer number (496260637305).

Almost surely, 2^992521274609 is an apocalyptic number.

It is an amenable number.

992521274609 is a deficient number, since it is larger than the sum of its proper divisors (1).

992521274609 is an equidigital number, since it uses as much as digits as its factorization.

992521274609 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4898880, while the sum is 56.

The spelling of 992521274609 in words is "nine hundred ninety-two billion, five hundred twenty-one million, two hundred seventy-four thousand, six hundred nine".