12264945581 has 8 divisors (see below), whose sum is σ = 14023608384. Its totient is φ = 10507914720.

The previous prime is 12264945577. The next prime is 12264945587. The reversal of 12264945581 is 18554946221.

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 12264945581 - 2² = 12264945577 is a prime.

It is a super-2 number, since 2×12264945581² (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 (12264945587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391835 + ... + 421976.

It is an arithmetic number, because the mean of its divisors is an integer number (1752951048).

Almost surely, 2^12264945581 is an apocalyptic number.

It is an amenable number.

12264945581 is a deficient number, since it is larger than the sum of its proper divisors (1758662803).

12264945581 is an equidigital number, since it uses as much as digits as its factorization.

12264945581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 815971.

The product of its digits is 691200, while the sum is 47.

The spelling of 12264945581 in words is "twelve billion, two hundred sixty-four million, nine hundred forty-five thousand, five hundred eighty-one".