19182002473 has 2 divisors, whose sum is σ = 19182002474. Its totient is φ = 19182002472.

The previous prime is 19182002443. The next prime is 19182002509. The reversal of 19182002473 is 37420028191.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19180034064 + 1968409 = 138492^2 + 1403^2 .

It is a cyclic number.

It is not a de Polignac number, because 19182002473 - 2⁹ = 19182001961 is a prime.

It is not a weakly prime, because it can be changed into another prime (19182002443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9591001236 + 9591001237.

It is an arithmetic number, because the mean of its divisors is an integer number (9591001237).

Almost surely, 2^19182002473 is an apocalyptic number.

It is an amenable number.

19182002473 is a deficient number, since it is larger than the sum of its proper divisors (1).

19182002473 is an equidigital number, since it uses as much as digits as its factorization.

19182002473 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 37.

The spelling of 19182002473 in words is "nineteen billion, one hundred eighty-two million, two thousand, four hundred seventy-three".