40544038771 has 2 divisors, whose sum is σ = 40544038772. Its totient is φ = 40544038770.

The previous prime is 40544038679. The next prime is 40544038783. The reversal of 40544038771 is 17783044504.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 40544038771 - 2¹⁵ = 40544006003 is a prime.

It is not a weakly prime, because it can be changed into another prime (40544030771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20272019385 + 20272019386.

It is an arithmetic number, because the mean of its divisors is an integer number (20272019386).

Almost surely, 2^40544038771 is an apocalyptic number.

40544038771 is a deficient number, since it is larger than the sum of its proper divisors (1).

40544038771 is an equidigital number, since it uses as much as digits as its factorization.

40544038771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 376320, while the sum is 43.

The spelling of 40544038771 in words is "forty billion, five hundred forty-four million, thirty-eight thousand, seven hundred seventy-one".