12408732393 has 8 divisors (see below), whose sum is σ = 16665743328. Its totient is φ = 8212104864.

The previous prime is 12408732373. The next prime is 12408732397. The reversal of 12408732393 is 39323780421.

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

It is not a de Polignac number, because 12408732393 - 2¹⁴ = 12408716009 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12408732397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15095371 + ... + 15096192.

It is an arithmetic number, because the mean of its divisors is an integer number (2083217916).

Almost surely, 2^12408732393 is an apocalyptic number.

It is an amenable number.

12408732393 is a deficient number, since it is larger than the sum of its proper divisors (4257010935).

12408732393 is a wasteful number, since it uses less digits than its factorization.

12408732393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30191703.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 12408732393 in words is "twelve billion, four hundred eight million, seven hundred thirty-two thousand, three hundred ninety-three".