21426066414 has 48 divisors (see below), whose sum is σ = 48881523600. Its totient is φ = 6764041728.

The previous prime is 21426066413. The next prime is 21426066421. The reversal of 21426066414 is 41466062412.

21426066414 is a `hidden beast` number, since 2 + 1 + 4 + 2 + 6 + 0 + 6 + 641 + 4 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21426066413) 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 23 ways as a sum of consecutive naturals, for example, 1404532 + ... + 1419704.

It is an arithmetic number, because the mean of its divisors is an integer number (1018365075).

Almost surely, 2^21426066414 is an apocalyptic number.

21426066414 is an abundant number, since it is smaller than the sum of its proper divisors (27455457186).

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

21426066414 is a wasteful number, since it uses less digits than its factorization.

21426066414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19329 (or 19326 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 36.

The spelling of 21426066414 in words is "twenty-one billion, four hundred twenty-six million, sixty-six thousand, four hundred fourteen".