18050273280 has 832 divisors, whose sum is σ = 72217098240. Its totient is φ = 4299816960.

The previous prime is 18050273279. The next prime is 18050273287. The reversal of 18050273280 is 8237205081.

18050273280 is a `hidden beast` number, since 1 + 8 + 0 + 502 + 73 + 2 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (832).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18050273287) by changing a digit.

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 63 ways as a sum of consecutive naturals, for example, 582266865 + ... + 582266895.

Almost surely, 2^18050273280 is an apocalyptic number.

18050273280 is a gapful number since it is divisible by the number (10) 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 18050273280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36108549120).

18050273280 is an abundant number, since it is smaller than the sum of its proper divisors (54166824960).

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

18050273280 is an frugal number, since it uses more digits than its factorization.

18050273280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94 (or 54 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 36.

The spelling of 18050273280 in words is "eighteen billion, fifty million, two hundred seventy-three thousand, two hundred eighty".