21464243064830 has 8 divisors (see below), whose sum is σ = 38635637516712. Its totient is φ = 8585697225928.

The previous prime is 21464243064827. The next prime is 21464243064839. The reversal of 21464243064830 is 3846034246412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×21464243064830² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21464243064839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1073212153232 + ... + 1073212153251.

It is an arithmetic number, because the mean of its divisors is an integer number (4829454689589).

Almost surely, 2^{21464243064830} is an apocalyptic number.

21464243064830 is a deficient number, since it is larger than the sum of its proper divisors (17171394451882).

21464243064830 is a wasteful number, since it uses less digits than its factorization.

21464243064830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2146424306490.

The product of its (nonzero) digits is 2654208, while the sum is 47.

The spelling of 21464243064830 in words is "twenty-one trillion, four hundred sixty-four billion, two hundred forty-three million, sixty-four thousand, eight hundred thirty".