21514414032439 has 4 divisors (see below), whose sum is σ = 21786748387360. Its totient is φ = 21242079677520.

The previous prime is 21514414032413. The next prime is 21514414032443. The reversal of 21514414032439 is 93423041441512.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21514414032439 - 2¹³ = 21514414024247 is a prime.

It is a super-2 number, since 2×21514414032439² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21514414032395 and 21514414032404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21514414012439) 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, 136167177342 + ... + 136167177499.

It is an arithmetic number, because the mean of its divisors is an integer number (5446687096840).

Almost surely, 2^{21514414032439} is an apocalyptic number.

21514414032439 is a deficient number, since it is larger than the sum of its proper divisors (272334354921).

21514414032439 is an equidigital number, since it uses as much as digits as its factorization.

21514414032439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 272334354920.

The product of its (nonzero) digits is 414720, while the sum is 43.

The spelling of 21514414032439 in words is "twenty-one trillion, five hundred fourteen billion, four hundred fourteen million, thirty-two thousand, four hundred thirty-nine".