12863511045 has 64 divisors (see below), whose sum is σ = 28511354880. Its totient is φ = 5345870400.

The previous prime is 12863511029. The next prime is 12863511077. The reversal of 12863511045 is 54011536821.

12863511045 is a `hidden beast` number, since 1 + 2 + 8 + 635 + 1 + 10 + 4 + 5 = 666.

It is not a de Polignac number, because 12863511045 - 2⁴ = 12863511029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 608341 + ... + 629130.

It is an arithmetic number, because the mean of its divisors is an integer number (445489920).

Almost surely, 2^12863511045 is an apocalyptic number.

12863511045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12863511045 is an abundant number, since it is smaller than the sum of its proper divisors (15647843835).

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

12863511045 is a wasteful number, since it uses less digits than its factorization.

12863511045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1237503 (or 1237497 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The spelling of 12863511045 in words is "twelve billion, eight hundred sixty-three million, five hundred eleven thousand, forty-five".