18328616430 has 32 divisors (see below), whose sum is σ = 44038560384. Its totient is φ = 4882088736.

The previous prime is 18328616429. The next prime is 18328616443. The reversal of 18328616430 is 3461682381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319464 + ... + 372443.

It is an arithmetic number, because the mean of its divisors is an integer number (1376205012).

Almost surely, 2^18328616430 is an apocalyptic number.

18328616430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18328616430 is an abundant number, since it is smaller than the sum of its proper divisors (25709943954).

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

18328616430 is a wasteful number, since it uses less digits than its factorization.

18328616430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692800.

The product of its (nonzero) digits is 165888, while the sum is 42.

The spelling of 18328616430 in words is "eighteen billion, three hundred twenty-eight million, six hundred sixteen thousand, four hundred thirty".