18437482656 has 192 divisors, whose sum is σ = 58559760000. Its totient is φ = 5621446656.

The previous prime is 18437482597. The next prime is 18437482669. The reversal of 18437482656 is 65628473481.

It is a happy number.

18437482656 is a `hidden beast` number, since 1 + 8 + 4 + 374 + 8 + 265 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 456700 + ... + 495428.

It is an arithmetic number, because the mean of its divisors is an integer number (304998750).

Almost surely, 2^18437482656 is an apocalyptic number.

18437482656 is a gapful number since it is divisible by the number (16) 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 18437482656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29279880000).

18437482656 is an abundant number, since it is smaller than the sum of its proper divisors (40122277344).

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

18437482656 is a wasteful number, since it uses less digits than its factorization.

18437482656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38796 (or 38782 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 18437482656 in words is "eighteen billion, four hundred thirty-seven million, four hundred eighty-two thousand, six hundred fifty-six".