863246749563 has 12 divisors (see below), whose sum is σ = 1360267605528. Its totient is φ = 523179848160.

The previous prime is 863246749549. The next prime is 863246749567. The reversal of 863246749563 is 365947642368.

863246749563 is a `hidden beast` number, since 8 + 6 + 3 + 2 + 4 + 67 + 4 + 9 + 563 = 666.

It is not a de Polignac number, because 863246749563 - 2⁹ = 863246749051 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 863246749563.

It is not an unprimeable number, because it can be changed into a prime (863246749567) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4359831970 + ... + 4359832167.

It is an arithmetic number, because the mean of its divisors is an integer number (113355633794).

Almost surely, 2^863246749563 is an apocalyptic number.

863246749563 is a deficient number, since it is larger than the sum of its proper divisors (497020855965).

863246749563 is a wasteful number, since it uses less digits than its factorization.

863246749563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8719664154 (or 8719664151 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 63.

The spelling of 863246749563 in words is "eight hundred sixty-three billion, two hundred forty-six million, seven hundred forty-nine thousand, five hundred sixty-three".