18712550976 has 224 divisors, whose sum is σ = 60405995520. Its totient is φ = 4993228800.

The previous prime is 18712550971. The next prime is 18712550999. The reversal of 18712550976 is 67905521781.

It is a tau number, because it is divible by the number of its divisors (224).

It is not an unprimeable number, because it can be changed into a prime (18712550971) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 1807896 + ... + 1818216.

Almost surely, 2^18712550976 is an apocalyptic number.

18712550976 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 18712550976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30202997760).

18712550976 is an abundant number, since it is smaller than the sum of its proper divisors (41693444544).

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

18712550976 is a wasteful number, since it uses less digits than its factorization.

18712550976 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10433 (or 10423 counting only the distinct ones).

The product of its (nonzero) digits is 1058400, while the sum is 51.

The spelling of 18712550976 in words is "eighteen billion, seven hundred twelve million, five hundred fifty thousand, nine hundred seventy-six".