21414644641412 has 96 divisors (see below), whose sum is σ = 42296712192000. Its totient is φ = 9404145334400.

The previous prime is 21414644641343. The next prime is 21414644641417.

21414644641412 is nontrivially palindromic in base 10.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is not an unprimeable number, because it can be changed into a prime (21414644641417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40894214 + ... + 41414562.

It is an arithmetic number, because the mean of its divisors is an integer number (440590752000).

Almost surely, 2^{21414644641412} is an apocalyptic number.

21414644641412 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21414644641412 is a deficient number, since it is larger than the sum of its proper divisors (20882067550588).

21414644641412 is a wasteful number, since it uses less digits than its factorization.

21414644641412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 520697 (or 520695 counting only the distinct ones).

The product of its digits is 589824, while the sum is 44.

It can be divided in two parts, 2141464 and 4641412, that added together give a palindrome (6782876).

The spelling of 21414644641412 in words is "twenty-one trillion, four hundred fourteen billion, six hundred forty-four million, six hundred forty-one thousand, four hundred twelve".