18488223530 has 16 divisors (see below), whose sum is σ = 38032917120. Its totient is φ = 6338819472.

The previous prime is 18488223473. The next prime is 18488223547. The reversal of 18488223530 is 3532288481.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 132058670 + ... + 132058809.

It is an arithmetic number, because the mean of its divisors is an integer number (2377057320).

Almost surely, 2^18488223530 is an apocalyptic number.

18488223530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

18488223530 is an abundant number, since it is smaller than the sum of its proper divisors (19544693590).

18488223530 is a wasteful number, since it uses less digits than its factorization.

18488223530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264117493.

The product of its (nonzero) digits is 368640, while the sum is 44.

The spelling of 18488223530 in words is "eighteen billion, four hundred eighty-eight million, two hundred twenty-three thousand, five hundred thirty".