19727252194 has 32 divisors (see below), whose sum is σ = 32938665984. Its totient is φ = 8799503040.

The previous prime is 19727252161. The next prime is 19727252203. The reversal of 19727252194 is 49125272791.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 607207 + ... + 638869.

It is an arithmetic number, because the mean of its divisors is an integer number (1029333312).

Almost surely, 2^19727252194 is an apocalyptic number.

19727252194 is a deficient number, since it is larger than the sum of its proper divisors (13211413790).

19727252194 is a wasteful number, since it uses less digits than its factorization.

19727252194 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32482.

The product of its digits is 635040, while the sum is 49.

The spelling of 19727252194 in words is "nineteen billion, seven hundred twenty-seven million, two hundred fifty-two thousand, one hundred ninety-four".