2090188813 has 2 divisors, whose sum is σ = 2090188814. Its totient is φ = 2090188812.

The previous prime is 2090188787. The next prime is 2090188817. The reversal of 2090188813 is 3188810902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2027430729 + 62758084 = 45027^2 + 7922^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2090188813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2090188817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045094406 + 1045094407.

It is an arithmetic number, because the mean of its divisors is an integer number (1045094407).

Almost surely, 2^2090188813 is an apocalyptic number.

It is an amenable number.

2090188813 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090188813 is an equidigital number, since it uses as much as digits as its factorization.

2090188813 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 27648, while the sum is 40.

The square root of 2090188813 is about 45718.5827973703. The cubic root of 2090188813 is about 1278.5817651601.

The spelling of 2090188813 in words is "two billion, ninety million, one hundred eighty-eight thousand, eight hundred thirteen".