12463307576281 has 3 divisors (see below), whose sum is σ = 12463311106623. Its totient is φ = 12463304045940.

The previous prime is 12463307576273. The next prime is 12463307576299. The reversal of 12463307576281 is 18267570336421.

The square root of 12463307576281 is 3530341.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 11184282292681 + 1279025283600 = 3344291^2 + 1130940^2 .

It is not a de Polignac number, because 12463307576281 - 2³ = 12463307576273 is a prime.

It is a super-2 number, since 2×12463307576281² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12463307576201) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1765171 + ... + 5295511.

It is an arithmetic number, because the mean of its divisors is an integer number (4154437035541).

Almost surely, 2^{12463307576281} is an apocalyptic number.

12463307576281 is the 3530341-st square number.

12463307576281 is the 1765171-st centered octagonal number.

It is an amenable number.

12463307576281 is a deficient number, since it is larger than the sum of its proper divisors (3530342).

12463307576281 is an frugal number, since it uses more digits than its factorization.

12463307576281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7060682 (or 3530341 counting only the distinct ones).

The product of its (nonzero) digits is 10160640, while the sum is 55.

The spelling of 12463307576281 in words is "twelve trillion, four hundred sixty-three billion, three hundred seven million, five hundred seventy-six thousand, two hundred eighty-one".