800009441029 has 2 divisors, whose sum is σ = 800009441030. Its totient is φ = 800009441028.

The previous prime is 800009440981. The next prime is 800009441039. The reversal of 800009441029 is 920144900008.

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., 461553108129 + 338456332900 = 679377^2 + 581770^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-800009441029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (800009441039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400004720514 + 400004720515.

It is an arithmetic number, because the mean of its divisors is an integer number (400004720515).

Almost surely, 2^800009441029 is an apocalyptic number.

It is an amenable number.

800009441029 is a deficient number, since it is larger than the sum of its proper divisors (1).

800009441029 is an equidigital number, since it uses as much as digits as its factorization.

800009441029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 800009441029 in words is "eight hundred billion, nine million, four hundred forty-one thousand, twenty-nine".