1838004913 has 2 divisors, whose sum is σ = 1838004914. Its totient is φ = 1838004912.

The previous prime is 1838004907. The next prime is 1838005051. The reversal of 1838004913 is 3194008381.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1343075904 + 494929009 = 36648^2 + 22247^2 .

It is an emirp because it is prime and its reverse (3194008381) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1838004913 - 2²⁵ = 1804450481 is a prime.

It is not a weakly prime, because it can be changed into another prime (1838004613) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 919002456 + 919002457.

It is an arithmetic number, because the mean of its divisors is an integer number (919002457).

Almost surely, 2^1838004913 is an apocalyptic number.

It is an amenable number.

1838004913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1838004913 is an equidigital number, since it uses as much as digits as its factorization.

1838004913 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 1838004913 is about 42871.9595190143. The cubic root of 1838004913 is about 1224.9420853919.

The spelling of 1838004913 in words is "one billion, eight hundred thirty-eight million, four thousand, nine hundred thirteen".