18929010858 has 8 divisors (see below), whose sum is σ = 37858021728. Its totient is φ = 6309670284.

The previous prime is 18929010857. The next prime is 18929010883. The reversal of 18929010858 is 85801092981.

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

18929010858 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 18929010858.

It is not an unprimeable number, because it can be changed into a prime (18929010857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1577417566 + ... + 1577417577.

It is an arithmetic number, because the mean of its divisors is an integer number (4732252716).

Almost surely, 2^18929010858 is an apocalyptic number.

18929010858 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.

18929010858 is a wasteful number, since it uses less digits than its factorization.

18929010858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3154835148.

The product of its (nonzero) digits is 414720, while the sum is 51.

The spelling of 18929010858 in words is "eighteen billion, nine hundred twenty-nine million, ten thousand, eight hundred fifty-eight".