40444135928905 has 4 divisors (see below), whose sum is σ = 48532963114692. Its totient is φ = 32355308743120.

The previous prime is 40444135928839. The next prime is 40444135928929. The reversal of 40444135928905 is 50982953144404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26285441986489 + 14158693942416 = 5126933^2 + 3762804^2 .

It is not a de Polignac number, because 40444135928905 - 2²⁹ = 40443599057993 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 40444135928905.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4044413592886 + ... + 4044413592895.

It is an arithmetic number, because the mean of its divisors is an integer number (12133240778673).

Almost surely, 2^{40444135928905} is an apocalyptic number.

It is an amenable number.

40444135928905 is a deficient number, since it is larger than the sum of its proper divisors (8088827185787).

40444135928905 is an equidigital number, since it uses as much as digits as its factorization.

40444135928905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8088827185786.

The product of its (nonzero) digits is 24883200, while the sum is 58.

The spelling of 40444135928905 in words is "forty trillion, four hundred forty-four billion, one hundred thirty-five million, nine hundred twenty-eight thousand, nine hundred five".