19220992378 has 8 divisors (see below), whose sum is σ = 32950272672. Its totient is φ = 8237568156.

The previous prime is 19220992369. The next prime is 19220992463. The reversal of 19220992378 is 87329902291.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686464000 + ... + 686464027.

It is an arithmetic number, because the mean of its divisors is an integer number (4118784084).

Almost surely, 2^19220992378 is an apocalyptic number.

19220992378 is a deficient number, since it is larger than the sum of its proper divisors (13729280294).

19220992378 is a wasteful number, since it uses less digits than its factorization.

19220992378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1372928036.

The product of its (nonzero) digits is 979776, while the sum is 52.

The spelling of 19220992378 in words is "nineteen billion, two hundred twenty million, nine hundred ninety-two thousand, three hundred seventy-eight".