21423414244419 has 48 divisors (see below), whose sum is σ = 35744571514080. Its totient is φ = 12219892346880.

The previous prime is 21423414244411. The next prime is 21423414244433. The reversal of 21423414244419 is 91444241432412.

21423414244419 is a `hidden beast` number, since 2 + 1 + 423 + 4 + 142 + 44 + 41 + 9 = 666.

It is not a de Polignac number, because 21423414244419 - 2³ = 21423414244411 is a prime.

It is a super-2 number, since 2×21423414244419² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21423414244411) 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, 123393279 + ... + 123566775.

It is an arithmetic number, because the mean of its divisors is an integer number (744678573210).

Almost surely, 2^{21423414244419} is an apocalyptic number.

21423414244419 is a deficient number, since it is larger than the sum of its proper divisors (14321157269661).

21423414244419 is a wasteful number, since it uses less digits than its factorization.

21423414244419 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 246900 (or 246897 counting only the distinct ones).

The product of its digits is 884736, while the sum is 45.

The spelling of 21423414244419 in words is "twenty-one trillion, four hundred twenty-three billion, four hundred fourteen million, two hundred forty-four thousand, four hundred nineteen".