1949083819 has 2 divisors, whose sum is σ = 1949083820. Its totient is φ = 1949083818.

The previous prime is 1949083781. The next prime is 1949083837. The reversal of 1949083819 is 9183809491.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1949083819 - 2⁹ = 1949083307 is a prime.

It is a super-2 number, since 2×1949083819² = 7597855466975249522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1949683819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974541909 + 974541910.

It is an arithmetic number, because the mean of its divisors is an integer number (974541910).

Almost surely, 2^1949083819 is an apocalyptic number.

1949083819 is a deficient number, since it is larger than the sum of its proper divisors (1).

1949083819 is an equidigital number, since it uses as much as digits as its factorization.

1949083819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 52.

The square root of 1949083819 is about 44148.4294058124. The cubic root of 1949083819 is about 1249.1372861034.

The spelling of 1949083819 in words is "one billion, nine hundred forty-nine million, eighty-three thousand, eight hundred nineteen".