12240277544 has 64 divisors (see below), whose sum is σ = 26600486400. Its totient is φ = 5226681600.

The previous prime is 12240277541. The next prime is 12240277639. The reversal of 12240277544 is 44577204221.

It is a junction number, because it is equal to n+sod(n) for n = 12240277498 and 12240277507.

It is not an unprimeable number, because it can be changed into a prime (12240277541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29609 + ... + 159239.

It is an arithmetic number, because the mean of its divisors is an integer number (415632600).

Almost surely, 2^12240277544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12240277544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13300243200).

12240277544 is an abundant number, since it is smaller than the sum of its proper divisors (14360208856).

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

12240277544 is a wasteful number, since it uses less digits than its factorization.

12240277544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129714 (or 129710 counting only the distinct ones).

The product of its (nonzero) digits is 125440, while the sum is 38.

The spelling of 12240277544 in words is "twelve billion, two hundred forty million, two hundred seventy-seven thousand, five hundred forty-four".