19022368457 has 2 divisors, whose sum is σ = 19022368458. Its totient is φ = 19022368456.

The previous prime is 19022368447. The next prime is 19022368499. The reversal of 19022368457 is 75486322091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17263069321 + 1759299136 = 131389^2 + 41944^2 .

It is a cyclic number.

It is not a de Polignac number, because 19022368457 - 2¹⁰ = 19022367433 is a prime.

It is not a weakly prime, because it can be changed into another prime (19022368447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9511184228 + 9511184229.

It is an arithmetic number, because the mean of its divisors is an integer number (9511184229).

It is a 1-persistent number, because it is pandigital, but 2⋅19022368457 = 38044736914 is not.

Almost surely, 2^19022368457 is an apocalyptic number.

It is an amenable number.

19022368457 is a deficient number, since it is larger than the sum of its proper divisors (1).

19022368457 is an equidigital number, since it uses as much as digits as its factorization.

19022368457 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 19022368457 in words is "nineteen billion, twenty-two million, three hundred sixty-eight thousand, four hundred fifty-seven".