12419844891421 has 8 divisors (see below), whose sum is σ = 13550231784384. Its totient is φ = 11289676345920.

The previous prime is 12419844891407. The next prime is 12419844891439.

12419844891421 is nontrivially palindromic in base 10.

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 12419844891421 - 2⁹ = 12419844890909 is a prime.

It is a super-2 number, since 2×12419844891421² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12419844891721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54467916 + ... + 54695461.

It is an arithmetic number, because the mean of its divisors is an integer number (1693778973048).

Almost surely, 2^{12419844891421} is an apocalyptic number.

12419844891421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12419844891421 is a deficient number, since it is larger than the sum of its proper divisors (1130386892963).

12419844891421 is a wasteful number, since it uses less digits than its factorization.

12419844891421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109173731.

The product of its digits is 5308416, while the sum is 58.

The spelling of 12419844891421 in words is "twelve trillion, four hundred nineteen billion, eight hundred forty-four million, eight hundred ninety-one thousand, four hundred twenty-one".