41443311621 has 4 divisors (see below), whose sum is σ = 55257748832. Its totient is φ = 27628874412.

The previous prime is 41443311607. The next prime is 41443311629. The reversal of 41443311621 is 12611334414.

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 not a de Polignac number, because 41443311621 - 2⁷ = 41443311493 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 (41443311629) 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, 6907218601 + ... + 6907218606.

It is an arithmetic number, because the mean of its divisors is an integer number (13814437208).

Almost surely, 2^41443311621 is an apocalyptic number.

It is an amenable number.

41443311621 is a deficient number, since it is larger than the sum of its proper divisors (13814437211).

41443311621 is a wasteful number, since it uses less digits than its factorization.

41443311621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13814437210.

The product of its digits is 6912, while the sum is 30.

The spelling of 41443311621 in words is "forty-one billion, four hundred forty-three million, three hundred eleven thousand, six hundred twenty-one".