12381063946191 has 48 divisors (see below), whose sum is σ = 18736981198208. Its totient is φ = 8169531501600.

The previous prime is 12381063946091. The next prime is 12381063946217. The reversal of 12381063946191 is 19164936018321.

12381063946191 is a `hidden beast` number, since 1 + 2 + 3 + 8 + 10 + 6 + 3 + 9 + 4 + 619 + 1 = 666.

It is not a de Polignac number, because 12381063946191 - 2¹³ = 12381063937999 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 (12381063946091) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8613360 + ... + 9947466.

Almost surely, 2^{12381063946191} is an apocalyptic number.

12381063946191 is a deficient number, since it is larger than the sum of its proper divisors (6355917252017).

12381063946191 is a wasteful number, since it uses less digits than its factorization.

12381063946191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1334514 (or 1334502 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 12381063946191 in words is "twelve trillion, three hundred eighty-one billion, sixty-three million, nine hundred forty-six thousand, one hundred ninety-one".