181449587130 has 128 divisors (see below), whose sum is σ = 524073093120. Its totient is φ = 39277198080.

The previous prime is 181449587101. The next prime is 181449587141. The reversal of 181449587130 is 31785944181.

181449587130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14146120 + ... + 14158940.

It is an arithmetic number, because the mean of its divisors is an integer number (4094321040).

Almost surely, 2^181449587130 is an apocalyptic number.

181449587130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 181449587130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (262036546560).

181449587130 is an abundant number, since it is smaller than the sum of its proper divisors (342623505990).

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

181449587130 is a wasteful number, since it uses less digits than its factorization.

181449587130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16404.

The product of its (nonzero) digits is 967680, while the sum is 51.

The spelling of 181449587130 in words is "one hundred eighty-one billion, four hundred forty-nine million, five hundred eighty-seven thousand, one hundred thirty".