21473067014642 has 8 divisors (see below), whose sum is σ = 32209668925932. Its totient is φ = 10736510706000.

The previous prime is 21473067014569. The next prime is 21473067014681. The reversal of 21473067014642 is 24641076037412.

It can be written as a sum of positive squares in 2 ways, for example, as 18546295384681 + 2926771629961 = 4306541^2 + 1710781^2 .

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

It is a super-2 number, since 2×21473067014642² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10198109 + ... + 12122192.

Almost surely, 2^{21473067014642} is an apocalyptic number.

21473067014642 is a deficient number, since it is larger than the sum of its proper divisors (10736601911290).

21473067014642 is a wasteful number, since it uses less digits than its factorization.

21473067014642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22801324.

The product of its (nonzero) digits is 1354752, while the sum is 47.

The spelling of 21473067014642 in words is "twenty-one trillion, four hundred seventy-three billion, sixty-seven million, fourteen thousand, six hundred forty-two".