18866305030 has 32 divisors (see below), whose sum is σ = 34642730304. Its totient is φ = 7396171776.

The previous prime is 18866305019. The next prime is 18866305057. The reversal of 18866305030 is 3050366881.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 5494 + ... + 194326.

It is an arithmetic number, because the mean of its divisors is an integer number (1082585322).

Almost surely, 2^18866305030 is an apocalyptic number.

18866305030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18866305030 is a deficient number, since it is larger than the sum of its proper divisors (15776425274).

18866305030 is a wasteful number, since it uses less digits than its factorization.

18866305030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189040.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 18866305030 in words is "eighteen billion, eight hundred sixty-six million, three hundred five thousand, thirty".