18829431798 has 8 divisors (see below), whose sum is σ = 37658863608. Its totient is φ = 6276477264.

The previous prime is 18829431791. The next prime is 18829431799. The reversal of 18829431798 is 89713492881.

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

18829431798 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18829431791) by changing a digit.

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, 1569119311 + ... + 1569119322.

It is an arithmetic number, because the mean of its divisors is an integer number (4707357951).

Almost surely, 2^18829431798 is an apocalyptic number.

18829431798 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18829431798 is a wasteful number, since it uses less digits than its factorization.

18829431798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138238638.

The product of its digits is 6967296, while the sum is 60.

The spelling of 18829431798 in words is "eighteen billion, eight hundred twenty-nine million, four hundred thirty-one thousand, seven hundred ninety-eight".