41246381821 has 4 divisors (see below), whose sum is σ = 41768488000. Its totient is φ = 40724275644.

The previous prime is 41246381791. The next prime is 41246381843. The reversal of 41246381821 is 12818364214.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 41246381821 - 2⁵ = 41246381789 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 (41246381851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261052971 + ... + 261053128.

It is an arithmetic number, because the mean of its divisors is an integer number (10442122000).

Almost surely, 2^41246381821 is an apocalyptic number.

It is an amenable number.

41246381821 is a deficient number, since it is larger than the sum of its proper divisors (522106179).

41246381821 is an equidigital number, since it uses as much as digits as its factorization.

41246381821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522106178.

The product of its digits is 73728, while the sum is 40.

The spelling of 41246381821 in words is "forty-one billion, two hundred forty-six million, three hundred eighty-one thousand, eight hundred twenty-one".