18326855480 has 32 divisors (see below), whose sum is σ = 41257609200. Its totient is φ = 7326798336.

The previous prime is 18326855473. The next prime is 18326855509. The reversal of 18326855480 is 8455862381.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47390 + ... + 197229.

Almost surely, 2^18326855480 is an apocalyptic number.

18326855480 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

18326855480 is an abundant number, since it is smaller than the sum of its proper divisors (22930753720).

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

18326855480 is a wasteful number, since it uses less digits than its factorization.

18326855480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246503 (or 246499 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 50.

The spelling of 18326855480 in words is "eighteen billion, three hundred twenty-six million, eight hundred fifty-five thousand, four hundred eighty".