40565934771 has 24 divisors (see below), whose sum is σ = 56723401152. Its totient is φ = 25780827600.

The previous prime is 40565934737. The next prime is 40565934779. The reversal of 40565934771 is 17743956504.

It is not a de Polignac number, because 40565934771 - 2¹⁰ = 40565933747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (40565934779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 88156 + ... + 298166.

It is an arithmetic number, because the mean of its divisors is an integer number (2363475048).

Almost surely, 2^40565934771 is an apocalyptic number.

40565934771 is a deficient number, since it is larger than the sum of its proper divisors (16157466381).

40565934771 is a wasteful number, since it uses less digits than its factorization.

40565934771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210143 (or 210112 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 51.

The spelling of 40565934771 in words is "forty billion, five hundred sixty-five million, nine hundred thirty-four thousand, seven hundred seventy-one".