802995962728909 has 2 divisors, whose sum is σ = 802995962728910. Its totient is φ = 802995962728908.

The previous prime is 802995962728781. The next prime is 802995962728913. The reversal of 802995962728909 is 909827269599208.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 802995657003684 + 305725225 = 28337178^2 + 17485^2 .

It is a cyclic number.

It is not a de Polignac number, because 802995962728909 - 2⁷ = 802995962728781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (802995962728969) 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, 401497981364454 + 401497981364455.

It is an arithmetic number, because the mean of its divisors is an integer number (401497981364455).

Almost surely, 2^{802995962728909} is an apocalyptic number.

It is an amenable number.

802995962728909 is a deficient number, since it is larger than the sum of its proper divisors (1).

802995962728909 is an equidigital number, since it uses as much as digits as its factorization.

802995962728909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6348948480, while the sum is 85.

The spelling of 802995962728909 in words is "eight hundred two trillion, nine hundred ninety-five billion, nine hundred sixty-two million, seven hundred twenty-eight thousand, nine hundred nine".