19243338886 has 16 divisors (see below), whose sum is σ = 29389370544. Its totient is φ = 9448043904.

The previous prime is 19243338883. The next prime is 19243338913. The reversal of 19243338886 is 68883334291.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19243338883) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 257175 + ... + 323458.

It is an arithmetic number, because the mean of its divisors is an integer number (1836835659).

Almost surely, 2^19243338886 is an apocalyptic number.

19243338886 is a deficient number, since it is larger than the sum of its proper divisors (10146031658).

19243338886 is a wasteful number, since it uses less digits than its factorization.

19243338886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 580935.

The product of its digits is 5971968, while the sum is 55.

The spelling of 19243338886 in words is "nineteen billion, two hundred forty-three million, three hundred thirty-eight thousand, eight hundred eighty-six".