19022188841 has 2 divisors, whose sum is σ = 19022188842. Its totient is φ = 19022188840.

The previous prime is 19022188837. The next prime is 19022188859. The reversal of 19022188841 is 14888122091.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10084377241 + 8937811600 = 100421^2 + 94540^2 .

It is a cyclic number.

It is not a de Polignac number, because 19022188841 - 2² = 19022188837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 19022188792 and 19022188801.

It is not a weakly prime, because it can be changed into another prime (19022182841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9511094420 + 9511094421.

It is an arithmetic number, because the mean of its divisors is an integer number (9511094421).

Almost surely, 2^19022188841 is an apocalyptic number.

It is an amenable number.

19022188841 is a deficient number, since it is larger than the sum of its proper divisors (1).

19022188841 is an equidigital number, since it uses as much as digits as its factorization.

19022188841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 73728, while the sum is 44.

The spelling of 19022188841 in words is "nineteen billion, twenty-two million, one hundred eighty-eight thousand, eight hundred forty-one".