800254889897 has 2 divisors, whose sum is σ = 800254889898. Its totient is φ = 800254889896.

The previous prime is 800254889891. The next prime is 800254889933. The reversal of 800254889897 is 798988452008.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 783244470121 + 17010419776 = 885011^2 + 130424^2 .

It is a cyclic number.

It is not a de Polignac number, because 800254889897 - 2³² = 795959922601 is a prime.

It is not a weakly prime, because it can be changed into another prime (800254889891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 400127444948 + 400127444949.

It is an arithmetic number, because the mean of its divisors is an integer number (400127444949).

Almost surely, 2^800254889897 is an apocalyptic number.

It is an amenable number.

800254889897 is a deficient number, since it is larger than the sum of its proper divisors (1).

800254889897 is an equidigital number, since it uses as much as digits as its factorization.

800254889897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92897280, while the sum is 68.

The spelling of 800254889897 in words is "eight hundred billion, two hundred fifty-four million, eight hundred eighty-nine thousand, eight hundred ninety-seven".