41874889220581 has 4 divisors (see below), whose sum is σ = 41877952727500. Its totient is φ = 41871825713664.

The previous prime is 41874889220579. The next prime is 41874889220597. The reversal of 41874889220581 is 18502298847814.

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 33221678630625 + 8653210589956 = 5763825^2 + 2941634^2 .

It is a cyclic number.

It is not a de Polignac number, because 41874889220581 - 2¹ = 41874889220579 is a prime.

It is a super-2 number, since 2×41874889220581² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41874889220981) 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, 1531732956 + ... + 1531760293.

It is an arithmetic number, because the mean of its divisors is an integer number (10469488181875).

Almost surely, 2^{41874889220581} is an apocalyptic number.

It is an amenable number.

41874889220581 is a deficient number, since it is larger than the sum of its proper divisors (3063506919).

41874889220581 is a wasteful number, since it uses less digits than its factorization.

41874889220581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3063506918.

The product of its (nonzero) digits is 82575360, while the sum is 67.

The spelling of 41874889220581 in words is "forty-one trillion, eight hundred seventy-four billion, eight hundred eighty-nine million, two hundred twenty thousand, five hundred eighty-one".