1463561261244 has 36 divisors (see below), whose sum is σ = 3699643291344. Its totient is φ = 487842458112.

The previous prime is 1463561261219. The next prime is 1463561261251. The reversal of 1463561261244 is 4421621653641.

1463561261244 is a `hidden beast` number, since 1 + 4 + 6 + 3 + 5 + 612 + 6 + 1 + 24 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1463561261244.

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 1185609 + ... + 2081535.

It is an arithmetic number, because the mean of its divisors is an integer number (102767869204).

Almost surely, 2^{1463561261244} is an apocalyptic number.

It is an amenable number.

1463561261244 is an abundant number, since it is smaller than the sum of its proper divisors (2236082030100).

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

1463561261244 is a wasteful number, since it uses less digits than its factorization.

1463561261244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 941314 (or 941309 counting only the distinct ones).

The product of its digits is 829440, while the sum is 45.

The spelling of 1463561261244 in words is "one trillion, four hundred sixty-three billion, five hundred sixty-one million, two hundred sixty-one thousand, two hundred forty-four".