1836464089 has 2 divisors, whose sum is σ = 1836464090. Its totient is φ = 1836464088.

The previous prime is 1836464029. The next prime is 1836464093. The reversal of 1836464089 is 9804646381.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1391886864 + 444577225 = 37308^2 + 21085^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1836464089 is a prime.

It is not a weakly prime, because it can be changed into another prime (1836464009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 918232044 + 918232045.

It is an arithmetic number, because the mean of its divisors is an integer number (918232045).

Almost surely, 2^1836464089 is an apocalyptic number.

It is an amenable number.

1836464089 is a deficient number, since it is larger than the sum of its proper divisors (1).

1836464089 is an equidigital number, since it uses as much as digits as its factorization.

1836464089 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 995328, while the sum is 49.

The square root of 1836464089 is about 42853.9856839478. The cubic root of 1836464089 is about 1224.5996946086.

The spelling of 1836464089 in words is "one billion, eight hundred thirty-six million, four hundred sixty-four thousand, eighty-nine".