18270446832 has 240 divisors, whose sum is σ = 59844919680. Its totient is φ = 5345222400.

The previous prime is 18270446809. The next prime is 18270446849. The reversal of 18270446832 is 23864407281.

It is a happy number.

18270446832 is a `hidden beast` number, since 182 + 7 + 0 + 4 + 468 + 3 + 2 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1232907 + ... + 1247637.

It is an arithmetic number, because the mean of its divisors is an integer number (249353832).

Almost surely, 2^18270446832 is an apocalyptic number.

18270446832 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 18270446832, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29922459840).

18270446832 is an abundant number, since it is smaller than the sum of its proper divisors (41574472848).

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

18270446832 is a wasteful number, since it uses less digits than its factorization.

18270446832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14794 (or 14776 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 45.

The spelling of 18270446832 in words is "eighteen billion, two hundred seventy million, four hundred forty-six thousand, eight hundred thirty-two".