18428554929 has 8 divisors (see below), whose sum is σ = 24575152000. Its totient is φ = 12283830576.

The previous prime is 18428554889. The next prime is 18428554933. The reversal of 18428554929 is 92945582481.

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

It is not a de Polignac number, because 18428554929 - 2⁷ = 18428554801 is a prime.

It is a super-2 number, since 2×18428554929² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (18428554229) 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, 445054 + ... + 484695.

It is an arithmetic number, because the mean of its divisors is an integer number (3071894000).

Almost surely, 2^18428554929 is an apocalyptic number.

It is an amenable number.

18428554929 is a deficient number, since it is larger than the sum of its proper divisors (6146597071).

18428554929 is an equidigital number, since it uses as much as digits as its factorization.

18428554929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 936359.

The product of its digits is 8294400, while the sum is 57.

The spelling of 18428554929 in words is "eighteen billion, four hundred twenty-eight million, five hundred fifty-four thousand, nine hundred twenty-nine".