41886161221 has 4 divisors (see below), whose sum is σ = 43237327744. Its totient is φ = 40534994700.

The previous prime is 41886161203. The next prime is 41886161269. The reversal of 41886161221 is 12216168814.

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 a de Polignac number, because none of the positive numbers 2^k-41886161221 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 (41886161201) 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, 675583215 + ... + 675583276.

It is an arithmetic number, because the mean of its divisors is an integer number (10809331936).

Almost surely, 2^41886161221 is an apocalyptic number.

It is an amenable number.

41886161221 is a deficient number, since it is larger than the sum of its proper divisors (1351166523).

41886161221 is a wasteful number, since it uses less digits than its factorization.

41886161221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1351166522.

The product of its digits is 36864, while the sum is 40.

The spelling of 41886161221 in words is "forty-one billion, eight hundred eighty-six million, one hundred sixty-one thousand, two hundred twenty-one".