18879191122 has 64 divisors (see below), whose sum is σ = 33003210240. Its totient is φ = 8009366400.

The previous prime is 18879191117. The next prime is 18879191129. The reversal of 18879191122 is 22119197881.

It is not an unprimeable number, because it can be changed into a prime (18879191129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19809798 + ... + 19810750.

It is an arithmetic number, because the mean of its divisors is an integer number (515675160).

Almost surely, 2^18879191122 is an apocalyptic number.

18879191122 is a deficient number, since it is larger than the sum of its proper divisors (14124019118).

18879191122 is a wasteful number, since it uses less digits than its factorization.

18879191122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1639.

The product of its digits is 145152, while the sum is 49.

The spelling of 18879191122 in words is "eighteen billion, eight hundred seventy-nine million, one hundred ninety-one thousand, one hundred twenty-two".