18473285376 has 648 divisors, whose sum is σ = 68575210704. Its totient is φ = 4737761280.

The previous prime is 18473285351. The next prime is 18473285407. The reversal of 18473285376 is 67358237481.

It is a happy number.

18473285376 is a `hidden beast` number, since 1 + 84 + 7 + 3 + 28 + 537 + 6 = 666.

It is a super-2 number, since 2×18473285376² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 60173415 + ... + 60173721.

Almost surely, 2^18473285376 is an apocalyptic number.

18473285376 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 18473285376, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34287605352).

18473285376 is an abundant number, since it is smaller than the sum of its proper divisors (50101925328).

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

18473285376 is a wasteful number, since it uses less digits than its factorization.

18473285376 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 373 counting only the distinct ones).

The product of its digits is 6773760, while the sum is 54.

The spelling of 18473285376 in words is "eighteen billion, four hundred seventy-three million, two hundred eighty-five thousand, three hundred seventy-six".