21334715441 has 8 divisors (see below), whose sum is σ = 22979932584. Its totient is φ = 19690081920.

The previous prime is 21334715419. The next prime is 21334715443. The reversal of 21334715441 is 14451743312.

It can be written as a sum of positive squares in 4 ways, for example, as 471801841 + 20862913600 = 21721^2 + 144440^2 .

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 21334715441 - 2³⁰ = 20260973617 is a prime.

It is a super-3 number, since 3×21334715441³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21334715443) 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, 68450 + ... + 217611.

It is an arithmetic number, because the mean of its divisors is an integer number (2872491573).

Almost surely, 2^21334715441 is an apocalyptic number.

It is an amenable number.

21334715441 is a deficient number, since it is larger than the sum of its proper divisors (1645217143).

21334715441 is a wasteful number, since it uses less digits than its factorization.

21334715441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291811.

The product of its digits is 40320, while the sum is 35.

The spelling of 21334715441 in words is "twenty-one billion, three hundred thirty-four million, seven hundred fifteen thousand, four hundred forty-one".