12663761542 has 16 divisors (see below), whose sum is σ = 19098462672. Its totient is φ = 6297691680.

The previous prime is 12663761507. The next prime is 12663761543. The reversal of 12663761542 is 24516736621.

12663761542 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12663761543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 285528 + ... + 326884.

It is an arithmetic number, because the mean of its divisors is an integer number (1193653917).

Almost surely, 2^12663761542 is an apocalyptic number.

12663761542 is a deficient number, since it is larger than the sum of its proper divisors (6434701130).

12663761542 is a wasteful number, since it uses less digits than its factorization.

12663761542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42183.

The product of its digits is 362880, while the sum is 43.

The spelling of 12663761542 in words is "twelve billion, six hundred sixty-three million, seven hundred sixty-one thousand, five hundred forty-two".