18828718489429 has 8 divisors (see below), whose sum is σ = 19651078936512. Its totient is φ = 18006668085120.

The previous prime is 18828718489349. The next prime is 18828718489447. The reversal of 18828718489429 is 92498481782881.

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

It is a cyclic number.

It is not a de Polignac number, because 18828718489429 - 2¹⁷ = 18828718358357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18828718489829) 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, 77386579 + ... + 77629504.

It is an arithmetic number, because the mean of its divisors is an integer number (2456384867064).

Almost surely, 2^{18828718489429} is an apocalyptic number.

It is an amenable number.

18828718489429 is a deficient number, since it is larger than the sum of its proper divisors (822360447083).

18828718489429 is a wasteful number, since it uses less digits than its factorization.

18828718489429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155021387.

The product of its digits is 1189085184, while the sum is 79.

The spelling of 18828718489429 in words is "eighteen trillion, eight hundred twenty-eight billion, seven hundred eighteen million, four hundred eighty-nine thousand, four hundred twenty-nine".