800880888089 has 2 divisors, whose sum is σ = 800880888090. Its totient is φ = 800880888088.

The previous prime is 800880888029. The next prime is 800880888103. The reversal of 800880888089 is 980888088008.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 754361731600 + 46519156489 = 868540^2 + 215683^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-800880888089 is a prime.

It is not a weakly prime, because it can be changed into another prime (800880888029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400440444044 + 400440444045.

It is an arithmetic number, because the mean of its divisors is an integer number (400440444045).

Almost surely, 2^800880888089 is an apocalyptic number.

It is an amenable number.

800880888089 is a deficient number, since it is larger than the sum of its proper divisors (1).

800880888089 is an equidigital number, since it uses as much as digits as its factorization.

800880888089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18874368, while the sum is 65.

The spelling of 800880888089 in words is "eight hundred billion, eight hundred eighty million, eight hundred eighty-eight thousand, eighty-nine".