12284078517 has 16 divisors (see below), whose sum is σ = 18226788480. Its totient is φ = 8176716576.

The previous prime is 12284078509. The next prime is 12284078519. The reversal of 12284078517 is 71587048221.

12284078517 is a `hidden beast` number, since 1 + 2 + 28 + 40 + 78 + 517 = 666.

It is not a de Polignac number, because 12284078517 - 2³ = 12284078509 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12284078519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 334128 + ... + 369065.

It is an arithmetic number, because the mean of its divisors is an integer number (1139174280).

Almost surely, 2^12284078517 is an apocalyptic number.

It is an amenable number.

12284078517 is a deficient number, since it is larger than the sum of its proper divisors (5942709963).

12284078517 is an equidigital number, since it uses as much as digits as its factorization.

12284078517 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 703849 (or 703843 counting only the distinct ones).

The product of its (nonzero) digits is 250880, while the sum is 45.

The spelling of 12284078517 in words is "twelve billion, two hundred eighty-four million, seventy-eight thousand, five hundred seventeen".