12452328581 has 8 divisors (see below), whose sum is σ = 15524981184. Its totient is φ = 9703113120.

The previous prime is 12452328557. The next prime is 12452328611. The reversal of 12452328581 is 18582325421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12452328581 - 2¹⁸ = 12452066437 is a prime.

It is a super-2 number, since 2×12452328581² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12452388581) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80859200 + ... + 80859353.

It is an arithmetic number, because the mean of its divisors is an integer number (1940622648).

Almost surely, 2^12452328581 is an apocalyptic number.

12452328581 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12452328581 is a deficient number, since it is larger than the sum of its proper divisors (3072652603).

12452328581 is a wasteful number, since it uses less digits than its factorization.

12452328581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161718571.

The product of its digits is 153600, while the sum is 41.

The spelling of 12452328581 in words is "twelve billion, four hundred fifty-two million, three hundred twenty-eight thousand, five hundred eighty-one".