12205677393 has 72 divisors (see below), whose sum is σ = 22121019648. Its totient is φ = 6428092608.

The previous prime is 12205677389. The next prime is 12205677433. The reversal of 12205677393 is 39377650221.

12205677393 is a `hidden beast` number, since 12 + 2 + 0 + 567 + 73 + 9 + 3 = 666.

It is not a de Polignac number, because 12205677393 - 2² = 12205677389 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12205677313) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 4946346 + ... + 4948812.

It is an arithmetic number, because the mean of its divisors is an integer number (307236384).

Almost surely, 2^12205677393 is an apocalyptic number.

12205677393 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12205677393 is a deficient number, since it is larger than the sum of its proper divisors (9915342255).

12205677393 is a wasteful number, since it uses less digits than its factorization.

12205677393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3363 (or 3353 counting only the distinct ones).

The product of its (nonzero) digits is 476280, while the sum is 45.

The spelling of 12205677393 in words is "twelve billion, two hundred five million, six hundred seventy-seven thousand, three hundred ninety-three".