18871729282 has 8 divisors (see below), whose sum is σ = 32351535936. Its totient is φ = 8087883972.

The previous prime is 18871729231. The next prime is 18871729297. The reversal of 18871729282 is 28292717881.

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

It is a super-2 number, since 2×18871729282² (a number of 21 digits) contains 22 as substring.

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, 673990318 + ... + 673990345.

It is an arithmetic number, because the mean of its divisors is an integer number (4043941992).

Almost surely, 2^18871729282 is an apocalyptic number.

18871729282 is a deficient number, since it is larger than the sum of its proper divisors (13479806654).

18871729282 is a wasteful number, since it uses less digits than its factorization.

18871729282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347980672.

The product of its digits is 1806336, while the sum is 55.

The spelling of 18871729282 in words is "eighteen billion, eight hundred seventy-one million, seven hundred twenty-nine thousand, two hundred eighty-two".