41724456421 has 4 divisors (see below), whose sum is σ = 41746043692. Its totient is φ = 41702869152.

The previous prime is 41724456383. The next prime is 41724456451. The reversal of 41724456421 is 12465442714.

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

It can be written as a sum of positive squares in 2 ways, for example, as 28009704321 + 13714752100 = 167361^2 + 117110^2 .

It is a cyclic number.

It is not a de Polignac number, because 41724456421 - 2²¹ = 41722359269 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41724456451) 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, 10790736 + ... + 10794601.

It is an arithmetic number, because the mean of its divisors is an integer number (10436510923).

Almost surely, 2^41724456421 is an apocalyptic number.

It is an amenable number.

41724456421 is a deficient number, since it is larger than the sum of its proper divisors (21587271).

41724456421 is a wasteful number, since it uses less digits than its factorization.

41724456421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21587270.

The product of its digits is 215040, while the sum is 40.

The spelling of 41724456421 in words is "forty-one billion, seven hundred twenty-four million, four hundred fifty-six thousand, four hundred twenty-one".