6802890401809 has 2 divisors, whose sum is σ = 6802890401810. Its totient is φ = 6802890401808.

The previous prime is 6802890401789. The next prime is 6802890401819. The reversal of 6802890401809 is 9081040982086.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5600132931600 + 1202757470209 = 2366460^2 + 1096703^2 .

It is a cyclic number.

It is not a de Polignac number, because 6802890401809 - 2⁵ = 6802890401777 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6802890401809.

It is not a weakly prime, because it can be changed into another prime (6802890401819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3401445200904 + 3401445200905.

It is an arithmetic number, because the mean of its divisors is an integer number (3401445200905).

Almost surely, 2^{6802890401809} is an apocalyptic number.

It is an amenable number.

6802890401809 is a deficient number, since it is larger than the sum of its proper divisors (1).

6802890401809 is an equidigital number, since it uses as much as digits as its factorization.

6802890401809 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1990656, while the sum is 55.

The spelling of 6802890401809 in words is "six trillion, eight hundred two billion, eight hundred ninety million, four hundred one thousand, eight hundred nine".