21214026546324 has 24 divisors (see below), whose sum is σ = 49499523900288. Its totient is φ = 7071323807040.

The previous prime is 21214026546319. The next prime is 21214026546331. The reversal of 21214026546324 is 42364562041212.

It is a congruent number.

It is an unprimeable number.

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, 3002629 + ... + 7172435.

It is an arithmetic number, because the mean of its divisors is an integer number (2062480162512).

Almost surely, 2^{21214026546324} is an apocalyptic number.

It is an amenable number.

21214026546324 is an abundant number, since it is smaller than the sum of its proper divisors (28285497353964).

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

21214026546324 is a wasteful number, since it uses less digits than its factorization.

21214026546324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4593775 (or 4593773 counting only the distinct ones).

The product of its (nonzero) digits is 552960, while the sum is 42.

Adding to 21214026546324 its reverse (42364562041212), we get a palindrome (63578588587536).

The spelling of 21214026546324 in words is "twenty-one trillion, two hundred fourteen billion, twenty-six million, five hundred forty-six thousand, three hundred twenty-four".