2204836187909 has 2 divisors, whose sum is σ = 2204836187910. Its totient is φ = 2204836187908.

The previous prime is 2204836187893. The next prime is 2204836187927. The reversal of 2204836187909 is 9097816384022.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1421173936900 + 783662251009 = 1192130^2 + 885247^2 .

It is a cyclic number.

It is not a de Polignac number, because 2204836187909 - 2⁴ = 2204836187893 is a prime.

It is a super-2 number, since 2×2204836187909² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2204836187999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1102418093954 + 1102418093955.

It is an arithmetic number, because the mean of its divisors is an integer number (1102418093955).

Almost surely, 2^{2204836187909} is an apocalyptic number.

It is an amenable number.

2204836187909 is a deficient number, since it is larger than the sum of its proper divisors (1).

2204836187909 is an equidigital number, since it uses as much as digits as its factorization.

2204836187909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10450944, while the sum is 59.

The spelling of 2204836187909 in words is "two trillion, two hundred four billion, eight hundred thirty-six million, one hundred eighty-seven thousand, nine hundred nine".