19222806494 has 4 divisors (see below), whose sum is σ = 28834209744. Its totient is φ = 9611403246.

The previous prime is 19222806469. The next prime is 19222806527. The reversal of 19222806494 is 49460822291.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4805701622 + ... + 4805701625.

It is an arithmetic number, because the mean of its divisors is an integer number (7208552436).

Almost surely, 2^19222806494 is an apocalyptic number.

19222806494 is a deficient number, since it is larger than the sum of its proper divisors (9611403250).

19222806494 is an equidigital number, since it uses as much as digits as its factorization.

19222806494 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9611403249.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 19222806494 in words is "nineteen billion, two hundred twenty-two million, eight hundred six thousand, four hundred ninety-four".