12747441136552 has 8 divisors (see below), whose sum is σ = 23901452131050. Its totient is φ = 6373720568272.

The previous prime is 12747441136543. The next prime is 12747441136603. The reversal of 12747441136552 is 25563114474721.

It can be written as a sum of positive squares in only one way, i.e., 7782057853956 + 4965383282596 = 2789634^2 + 2228314^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 12747441136552.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 796715071027 + ... + 796715071042.

Almost surely, 2^{12747441136552} is an apocalyptic number.

It is an amenable number.

12747441136552 is a deficient number, since it is larger than the sum of its proper divisors (11154010994498).

12747441136552 is a wasteful number, since it uses less digits than its factorization.

12747441136552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593430142075 (or 1593430142071 counting only the distinct ones).

The product of its digits is 5644800, while the sum is 52.

The spelling of 12747441136552 in words is "twelve trillion, seven hundred forty-seven billion, four hundred forty-one million, one hundred thirty-six thousand, five hundred fifty-two".