12393939433 has 8 divisors (see below), whose sum is σ = 12659493888. Its totient is φ = 12128462304.

The previous prime is 12393939431. The next prime is 12393939443. The reversal of 12393939433 is 33493939321.

12393939433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12393939433 - 2¹ = 12393939431 is a prime.

It is a super-2 number, since 2×12393939433² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12393939431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 401685 + ... + 431437.

It is an arithmetic number, because the mean of its divisors is an integer number (1582436736).

Almost surely, 2^12393939433 is an apocalyptic number.

It is an amenable number.

12393939433 is a deficient number, since it is larger than the sum of its proper divisors (265554455).

12393939433 is an equidigital number, since it uses as much as digits as its factorization.

12393939433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38663.

The product of its digits is 1417176, while the sum is 49.

The spelling of 12393939433 in words is "twelve billion, three hundred ninety-three million, nine hundred thirty-nine thousand, four hundred thirty-three".