1819058473 has 2 divisors, whose sum is σ = 1819058474. Its totient is φ = 1819058472.

The previous prime is 1819058459. The next prime is 1819058489. The reversal of 1819058473 is 3748509181.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1588261609 + 230796864 = 39853^2 + 15192^2 .

It is a cyclic number.

It is not a de Polignac number, because 1819058473 - 2²⁵ = 1785504041 is a prime.

It is not a weakly prime, because it can be changed into another prime (1819058413) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 909529236 + 909529237.

It is an arithmetic number, because the mean of its divisors is an integer number (909529237).

Almost surely, 2^1819058473 is an apocalyptic number.

It is an amenable number.

1819058473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1819058473 is an equidigital number, since it uses as much as digits as its factorization.

1819058473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 46.

The square root of 1819058473 is about 42650.4217212444. The cubic root of 1819058473 is about 1220.7185753798.

The spelling of 1819058473 in words is "one billion, eight hundred nineteen million, fifty-eight thousand, four hundred seventy-three".