41813638425621 has 10 divisors (see below), whose sum is σ = 62462348759382. Its totient is φ = 27875758950360.

The previous prime is 41813638425613. The next prime is 41813638425623. The reversal of 41813638425621 is 12652483631814.

41813638425621 is a `hidden beast` number, since 4 + 1 + 8 + 1 + 3 + 6 + 3 + 8 + 4 + 2 + 5 + 621 = 666.

It can be written as a sum of positive squares in only one way, i.e., 28361695824900 + 13451942600721 = 5325570^2 + 3667689^2 .

It is not a de Polignac number, because 41813638425621 - 2³ = 41813638425613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41813638425623) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 258108879090 + ... + 258108879251.

Almost surely, 2^{41813638425621} is an apocalyptic number.

It is an amenable number.

41813638425621 is a deficient number, since it is larger than the sum of its proper divisors (20648710333761).

41813638425621 is an equidigital number, since it uses as much as digits as its factorization.

41813638425621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516217758353 (or 516217758344 counting only the distinct ones).

The product of its digits is 6635520, while the sum is 54.

The spelling of 41813638425621 in words is "forty-one trillion, eight hundred thirteen billion, six hundred thirty-eight million, four hundred twenty-five thousand, six hundred twenty-one".