12405287379 has 8 divisors (see below), whose sum is σ = 17513346960. Its totient is φ = 7783709696.

The previous prime is 12405287353. The next prime is 12405287407. The reversal of 12405287379 is 97378250421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12405287379 - 2⁹ = 12405286867 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12405287579) 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, 121620414 + ... + 121620515.

It is an arithmetic number, because the mean of its divisors is an integer number (2189168370).

Almost surely, 2^12405287379 is an apocalyptic number.

12405287379 is a deficient number, since it is larger than the sum of its proper divisors (5108059581).

12405287379 is a wasteful number, since it uses less digits than its factorization.

12405287379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243240949.

The product of its (nonzero) digits is 846720, while the sum is 48.

The spelling of 12405287379 in words is "twelve billion, four hundred five million, two hundred eighty-seven thousand, three hundred seventy-nine".