18428105830 has 32 divisors (see below), whose sum is σ = 33839013600. Its totient is φ = 7223054592.

The previous prime is 18428105807. The next prime is 18428105851. The reversal of 18428105830 is 3850182481.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407281 + ... + 450259.

It is an arithmetic number, because the mean of its divisors is an integer number (1057469175).

Almost surely, 2^18428105830 is an apocalyptic number.

18428105830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18428105830 is a deficient number, since it is larger than the sum of its proper divisors (15410907770).

18428105830 is a wasteful number, since it uses less digits than its factorization.

18428105830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43848.

The product of its (nonzero) digits is 61440, while the sum is 40.

The spelling of 18428105830 in words is "eighteen billion, four hundred twenty-eight million, one hundred five thousand, eight hundred thirty".