12461552144 has 10 divisors (see below), whose sum is σ = 24144257310. Its totient is φ = 6230776064.

The previous prime is 12461552141. The next prime is 12461552153. The reversal of 12461552144 is 44125516421.

It can be written as a sum of positive squares in only one way, i.e., 10943670544 + 1517881600 = 104612^2 + 38960^2 .

It is not an unprimeable number, because it can be changed into a prime (12461552141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 389423489 + ... + 389423520.

It is an arithmetic number, because the mean of its divisors is an integer number (2414425731).

Almost surely, 2^12461552144 is an apocalyptic number.

It is an amenable number.

12461552144 is a deficient number, since it is larger than the sum of its proper divisors (11682705166).

12461552144 is an equidigital number, since it uses as much as digits as its factorization.

12461552144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778847017 (or 778847011 counting only the distinct ones).

The product of its digits is 38400, while the sum is 35.

The spelling of 12461552144 in words is "twelve billion, four hundred sixty-one million, five hundred fifty-two thousand, one hundred forty-four".