41844390685 has 4 divisors (see below), whose sum is σ = 50213268828. Its totient is φ = 33475512544.

The previous prime is 41844390647. The next prime is 41844390691. The reversal of 41844390685 is 58609344814.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 58609344814 = 2 ⋅29304672407.

It can be written as a sum of positive squares in 2 ways, for example, as 16083819684 + 25760571001 = 126822^2 + 160501^2 .

It is a cyclic number.

It is not a de Polignac number, because 41844390685 - 2¹⁵ = 41844357917 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 4184439064 + ... + 4184439073.

It is an arithmetic number, because the mean of its divisors is an integer number (12553317207).

Almost surely, 2^41844390685 is an apocalyptic number.

It is an amenable number.

41844390685 is a deficient number, since it is larger than the sum of its proper divisors (8368878143).

41844390685 is an equidigital number, since it uses as much as digits as its factorization.

41844390685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8368878142.

The product of its (nonzero) digits is 3317760, while the sum is 52.

The spelling of 41844390685 in words is "forty-one billion, eight hundred forty-four million, three hundred ninety thousand, six hundred eighty-five".