2805331100009 has 2 divisors, whose sum is σ = 2805331100010. Its totient is φ = 2805331100008.

The previous prime is 2805331099979. The next prime is 2805331100053. The reversal of 2805331100009 is 9000011335082.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2077210210009 + 728120890000 = 1441253^2 + 853300^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2805331100009 is a prime.

It is not a weakly prime, because it can be changed into another prime (2805331100059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1402665550004 + 1402665550005.

It is an arithmetic number, because the mean of its divisors is an integer number (1402665550005).

Almost surely, 2^{2805331100009} is an apocalyptic number.

It is an amenable number.

2805331100009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2805331100009 is an equidigital number, since it uses as much as digits as its factorization.

2805331100009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 32.

The spelling of 2805331100009 in words is "two trillion, eight hundred five billion, three hundred thirty-one million, one hundred thousand, nine".