2090315789 has 2 divisors, whose sum is σ = 2090315790. Its totient is φ = 2090315788.

The previous prime is 2090315729. The next prime is 2090315797. The reversal of 2090315789 is 9875130902.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1770978889 + 319336900 = 42083^2 + 17870^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2090315789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2090315729) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1045157894 + 1045157895.

It is an arithmetic number, because the mean of its divisors is an integer number (1045157895).

Almost surely, 2^2090315789 is an apocalyptic number.

It is an amenable number.

2090315789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2090315789 is an equidigital number, since it uses as much as digits as its factorization.

2090315789 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 136080, while the sum is 44.

The square root of 2090315789 is about 45719.9714457479. The cubic root of 2090315789 is about 1278.6076553109.

The spelling of 2090315789 in words is "two billion, ninety million, three hundred fifteen thousand, seven hundred eighty-nine".