18750473557632 has 256 divisors, whose sum is σ = 56044969286400. Its totient is φ = 6247723622400.

The previous prime is 18750473557603. The next prime is 18750473557633. The reversal of 18750473557632 is 23675537405781.

18750473557632 is a `hidden beast` number, since 1 + 8 + 7 + 5 + 0 + 4 + 73 + 557 + 6 + 3 + 2 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 18750473557632.

It is not an unprimeable number, because it can be changed into a prime (18750473557633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 808163632 + ... + 808186832.

It is an arithmetic number, because the mean of its divisors is an integer number (218925661275).

Almost surely, 2^{18750473557632} is an apocalyptic number.

18750473557632 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 18750473557632, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28022484643200).

18750473557632 is an abundant number, since it is smaller than the sum of its proper divisors (37294495728768).

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

18750473557632 is an frugal number, since it uses more digits than its factorization.

18750473557632 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26123 (or 26093 counting only the distinct ones).

The product of its (nonzero) digits is 148176000, while the sum is 63.

The spelling of 18750473557632 in words is "eighteen trillion, seven hundred fifty billion, four hundred seventy-three million, five hundred fifty-seven thousand, six hundred thirty-two".