19422816906 has 16 divisors (see below), whose sum is σ = 38847310848. Its totient is φ = 6473992800.

The previous prime is 19422816893. The next prime is 19422816913. The reversal of 19422816906 is 60961822491.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120646 + ... + 231086.

It is an arithmetic number, because the mean of its divisors is an integer number (2427956928).

Almost surely, 2^19422816906 is an apocalyptic number.

19422816906 is an abundant number, since it is smaller than the sum of its proper divisors (19424493942).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

19422816906 is a wasteful number, since it uses less digits than its factorization.

19422816906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139757.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 19422816906 in words is "nineteen billion, four hundred twenty-two million, eight hundred sixteen thousand, nine hundred six".