41391018791 has 4 divisors (see below), whose sum is σ = 41414904552. Its totient is φ = 41367133032.

The previous prime is 41391018677. The next prime is 41391018797. The reversal of 41391018791 is 19781019314.

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

It is a cyclic number.

It is not a de Polignac number, because 41391018791 - 2¹⁴ = 41391002407 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 (41391018797) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11940281 + ... + 11943746.

It is an arithmetic number, because the mean of its divisors is an integer number (10353726138).

Almost surely, 2^41391018791 is an apocalyptic number.

41391018791 is a deficient number, since it is larger than the sum of its proper divisors (23885761).

41391018791 is a wasteful number, since it uses less digits than its factorization.

41391018791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23885760.

The product of its (nonzero) digits is 54432, while the sum is 44.

The spelling of 41391018791 in words is "forty-one billion, three hundred ninety-one million, eighteen thousand, seven hundred ninety-one".