181485026880 has 224 divisors, whose sum is σ = 607225973760. Its totient is φ = 45797160960.

The previous prime is 181485026831. The next prime is 181485026909. The reversal of 181485026880 is 88620584181.

It is a hoax number, since the sum of its digits (51) coincides with the sum of the digits of its distinct prime factors.

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, 17705917 + ... + 17716163.

It is an arithmetic number, because the mean of its divisors is an integer number (2710830240).

Almost surely, 2^181485026880 is an apocalyptic number.

181485026880 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 181485026880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (303612986880).

181485026880 is an abundant number, since it is smaller than the sum of its proper divisors (425740946880).

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

181485026880 is a wasteful number, since it uses less digits than its factorization.

181485026880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11257 (or 11247 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 51.

The spelling of 181485026880 in words is "one hundred eighty-one billion, four hundred eighty-five million, twenty-six thousand, eight hundred eighty".