13621446410021 has 8 divisors (see below), whose sum is σ = 13724851795200. Its totient is φ = 13518214671600.

The previous prime is 13621446410017. The next prime is 13621446410083. The reversal of 13621446410021 is 12001464412631.

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

It is a cyclic number.

It is not a de Polignac number, because 13621446410021 - 2² = 13621446410017 is a prime.

It is a super-3 number, since 3×13621446410021³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13621446410321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43254206 + ... + 43567983.

It is an arithmetic number, because the mean of its divisors is an integer number (1715606474400).

Almost surely, 2^{13621446410021} is an apocalyptic number.

It is an amenable number.

13621446410021 is a deficient number, since it is larger than the sum of its proper divisors (103405385179).

13621446410021 is a wasteful number, since it uses less digits than its factorization.

13621446410021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86823379.

The product of its (nonzero) digits is 27648, while the sum is 35.

The spelling of 13621446410021 in words is "thirteen trillion, six hundred twenty-one billion, four hundred forty-six million, four hundred ten thousand, twenty-one".