12394057293 has 12 divisors (see below), whose sum is σ = 18565584128. Its totient is φ = 8262704700.

The previous prime is 12394057271. The next prime is 12394057301. The reversal of 12394057293 is 39275049321.

12394057293 is a `hidden beast` number, since 1 + 2 + 39 + 40 + 572 + 9 + 3 = 666.

It is not a de Polignac number, because 12394057293 - 2⁶ = 12394057229 is a prime.

It is a super-2 number, since 2×12394057293² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12394053293) 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 11 ways as a sum of consecutive naturals, for example, 25501933 + ... + 25502418.

Almost surely, 2^12394057293 is an apocalyptic number.

It is an amenable number.

12394057293 is a deficient number, since it is larger than the sum of its proper divisors (6171526835).

12394057293 is an frugal number, since it uses more digits than its factorization.

12394057293 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51004366 (or 51004354 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 45.

The spelling of 12394057293 in words is "twelve billion, three hundred ninety-four million, fifty-seven thousand, two hundred ninety-three".