12381722466 has 16 divisors (see below), whose sum is σ = 24820640544. Its totient is φ = 4117708224.

The previous prime is 12381722459. The next prime is 12381722467. The reversal of 12381722466 is 66422718321.

It is not an unprimeable number, because it can be changed into a prime (12381722467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2380336 + ... + 2385531.

It is an arithmetic number, because the mean of its divisors is an integer number (1551290034).

Almost surely, 2^12381722466 is an apocalyptic number.

12381722466 is an abundant number, since it is smaller than the sum of its proper divisors (12438918078).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12381722466 is a wasteful number, since it uses less digits than its factorization.

12381722466 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4766305.

The product of its digits is 193536, while the sum is 42.

The spelling of 12381722466 in words is "twelve billion, three hundred eighty-one million, seven hundred twenty-two thousand, four hundred sixty-six".