41558545821 has 8 divisors (see below), whose sum is σ = 59673809440. Its totient is φ = 25574489712.

The previous prime is 41558545811. The next prime is 41558545913. The reversal of 41558545821 is 12854585514.

41558545821 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 41558545821 - 2⁶ = 41558545757 is a prime.

It is a super-2 number, since 2×41558545821² (a number of 22 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 (41558545811) 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, 532801831 + ... + 532801908.

It is an arithmetic number, because the mean of its divisors is an integer number (7459226180).

Almost surely, 2^41558545821 is an apocalyptic number.

It is an amenable number.

41558545821 is a deficient number, since it is larger than the sum of its proper divisors (18115263619).

41558545821 is a wasteful number, since it uses less digits than its factorization.

41558545821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1065603755.

The product of its digits is 1280000, while the sum is 48.

The spelling of 41558545821 in words is "forty-one billion, five hundred fifty-eight million, five hundred forty-five thousand, eight hundred twenty-one".