12405919807 has 8 divisors (see below), whose sum is σ = 12430247696. Its totient is φ = 12381610752.

The previous prime is 12405919781. The next prime is 12405919819. The reversal of 12405919807 is 70891950421.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12405919807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12405919307) 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 7 ways as a sum of consecutive naturals, for example, 2384533 + ... + 2389729.

It is an arithmetic number, because the mean of its divisors is an integer number (1553780962).

Almost surely, 2^12405919807 is an apocalyptic number.

12405919807 is a deficient number, since it is larger than the sum of its proper divisors (24327889).

12405919807 is an equidigital number, since it uses as much as digits as its factorization.

12405919807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9417.

The product of its (nonzero) digits is 181440, while the sum is 46.

The spelling of 12405919807 in words is "twelve billion, four hundred five million, nine hundred nineteen thousand, eight hundred seven".