12144017492 has 24 divisors (see below), whose sum is σ = 21557865000. Its totient is φ = 5984741376.

The previous prime is 12144017491. The next prime is 12144017513. The reversal of 12144017492 is 29471044121.

It can be written as a sum of positive squares in 4 ways, for example, as 614841616 + 11529175876 = 24796^2 + 107374^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12144017491) 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, 438884 + ... + 465732.

It is an arithmetic number, because the mean of its divisors is an integer number (898244375).

Almost surely, 2^12144017492 is an apocalyptic number.

It is an amenable number.

12144017492 is a deficient number, since it is larger than the sum of its proper divisors (9413847508).

12144017492 is a wasteful number, since it uses less digits than its factorization.

12144017492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28475 (or 28473 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 12144017492 in words is "twelve billion, one hundred forty-four million, seventeen thousand, four hundred ninety-two".