5819491819 has 2 divisors, whose sum is σ = 5819491820. Its totient is φ = 5819491818.

The previous prime is 5819491807. The next prime is 5819491823. The reversal of 5819491819 is 9181949185.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5819491819 - 2²³ = 5811103211 is a prime.

It is a super-2 number, since 2×5819491819² = 67732970062815857522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5819491819.

It is not a weakly prime, because it can be changed into another prime (5819491859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2909745909 + 2909745910.

It is an arithmetic number, because the mean of its divisors is an integer number (2909745910).

Almost surely, 2^5819491819 is an apocalyptic number.

5819491819 is a deficient number, since it is larger than the sum of its proper divisors (1).

5819491819 is an equidigital number, since it uses as much as digits as its factorization.

5819491819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 933120, while the sum is 55.

The square root of 5819491819 is about 76285.5937841477. The cubic root of 5819491819 is about 1798.7122290148.

The spelling of 5819491819 in words is "five billion, eight hundred nineteen million, four hundred ninety-one thousand, eight hundred nineteen".