12451782663 has 24 divisors (see below), whose sum is σ = 18417848592. Its totient is φ = 8102118528.

The previous prime is 12451782661. The next prime is 12451782667. The reversal of 12451782663 is 36628715421.

12451782663 is a `hidden beast` number, since 124 + 517 + 8 + 2 + 6 + 6 + 3 = 666.

It is not a de Polignac number, because 12451782663 - 2¹ = 12451782661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12451782661) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 543345 + ... + 565797.

It is an arithmetic number, because the mean of its divisors is an integer number (767410358).

Almost surely, 2^12451782663 is an apocalyptic number.

12451782663 is a deficient number, since it is larger than the sum of its proper divisors (5966065929).

12451782663 is a wasteful number, since it uses less digits than its factorization.

12451782663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23935 (or 23932 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 12451782663 in words is "twelve billion, four hundred fifty-one million, seven hundred eighty-two thousand, six hundred sixty-three".