12381787407 has 16 divisors (see below), whose sum is σ = 18590837760. Its totient is φ = 7262044800.

The previous prime is 12381787357. The next prime is 12381787459. The reversal of 12381787407 is 70478718321.

It is not a de Polignac number, because 12381787407 - 2⁷ = 12381787279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12381787807) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6050682 + ... + 6052727.

It is an arithmetic number, because the mean of its divisors is an integer number (1161927360).

Almost surely, 2^12381787407 is an apocalyptic number.

12381787407 is a deficient number, since it is larger than the sum of its proper divisors (6209050353).

12381787407 is a wasteful number, since it uses less digits than its factorization.

12381787407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12103454.

The product of its (nonzero) digits is 526848, while the sum is 48.

The spelling of 12381787407 in words is "twelve billion, three hundred eighty-one million, seven hundred eighty-seven thousand, four hundred seven".