12394433805 has 48 divisors (see below), whose sum is σ = 21493429056. Its totient is φ = 6096330240.

The previous prime is 12394433767. The next prime is 12394433819. The reversal of 12394433805 is 50833449321.

It is not a de Polignac number, because 12394433805 - 2⁷ = 12394433677 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5076385 + ... + 5078825.

It is an arithmetic number, because the mean of its divisors is an integer number (447779772).

Almost surely, 2^12394433805 is an apocalyptic number.

12394433805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12394433805 is a deficient number, since it is larger than the sum of its proper divisors (9098995251).

12394433805 is a wasteful number, since it uses less digits than its factorization.

12394433805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4478 (or 4465 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 42.

The spelling of 12394433805 in words is "twelve billion, three hundred ninety-four million, four hundred thirty-three thousand, eight hundred five".