19889122058 has 32 divisors (see below), whose sum is σ = 32934021120. Its totient is φ = 8949767040.

The previous prime is 19889122049. The next prime is 19889122061. The reversal of 19889122058 is 85022198891.

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, 1869791 + ... + 1880397.

It is an arithmetic number, because the mean of its divisors is an integer number (1029188160).

Almost surely, 2^19889122058 is an apocalyptic number.

19889122058 is a deficient number, since it is larger than the sum of its proper divisors (13044899062).

19889122058 is a wasteful number, since it uses less digits than its factorization.

19889122058 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12422.

The product of its (nonzero) digits is 829440, while the sum is 53.

The spelling of 19889122058 in words is "nineteen billion, eight hundred eighty-nine million, one hundred twenty-two thousand, fifty-eight".