21463421910594 has 32 divisors (see below), whose sum is σ = 43926611841024. Its totient is φ = 6987857098320.

The previous prime is 21463421910577. The next prime is 21463421910613. The reversal of 21463421910594 is 49501912436412.

It is a happy number.

It is a super-2 number, since 2×21463421910594² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 6421239 + ... + 9173829.

It is an arithmetic number, because the mean of its divisors is an integer number (1372706620032).

Almost surely, 2^{21463421910594} is an apocalyptic number.

21463421910594 is an abundant number, since it is smaller than the sum of its proper divisors (22463189930430).

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

21463421910594 is a wasteful number, since it uses less digits than its factorization.

21463421910594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2782862.

The product of its (nonzero) digits is 1866240, while the sum is 51.

The spelling of 21463421910594 in words is "twenty-one trillion, four hundred sixty-three billion, four hundred twenty-one million, nine hundred ten thousand, five hundred ninety-four".