18789129213 has 8 divisors (see below), whose sum is σ = 25053278400. Its totient is φ = 12525533088.

The previous prime is 18789129209. The next prime is 18789129223. The reversal of 18789129213 is 31292198781.

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

It is not a de Polignac number, because 18789129213 - 2² = 18789129209 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18789129223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 51153 + ... + 200486.

It is an arithmetic number, because the mean of its divisors is an integer number (3131659800).

Almost surely, 2^18789129213 is an apocalyptic number.

It is an amenable number.

18789129213 is a deficient number, since it is larger than the sum of its proper divisors (6264149187).

18789129213 is a wasteful number, since it uses less digits than its factorization.

18789129213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276531.

The product of its digits is 435456, while the sum is 51.

The spelling of 18789129213 in words is "eighteen billion, seven hundred eighty-nine million, one hundred twenty-nine thousand, two hundred thirteen".