40541111822789 has 4 divisors (see below), whose sum is σ = 40542470787756. Its totient is φ = 40539752857824.

The previous prime is 40541111822741. The next prime is 40541111822791. The reversal of 40541111822789 is 98722811114504.

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 12043558166689 + 28497553656100 = 3470383^2 + 5338310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-40541111822789 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 40541111822789.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (40541111822719) 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, 679437734 + ... + 679497399.

It is an arithmetic number, because the mean of its divisors is an integer number (10135617696939).

Almost surely, 2^{40541111822789} is an apocalyptic number.

It is an amenable number.

40541111822789 is a deficient number, since it is larger than the sum of its proper divisors (1358964967).

40541111822789 is a wasteful number, since it uses less digits than its factorization.

40541111822789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1358964966.

The product of its (nonzero) digits is 1290240, while the sum is 53.

The spelling of 40541111822789 in words is "forty trillion, five hundred forty-one billion, one hundred eleven million, eight hundred twenty-two thousand, seven hundred eighty-nine".