40442934977 has 2 divisors, whose sum is σ = 40442934978. Its totient is φ = 40442934976.

The previous prime is 40442934901. The next prime is 40442934979. The reversal of 40442934977 is 77943924404.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 38682629041 + 1760305936 = 196679^2 + 41956^2 .

It is a cyclic number.

It is not a de Polignac number, because 40442934977 - 2¹² = 40442930881 is a prime.

Together with 40442934979, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (40442934979) 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 as a sum of consecutive naturals, namely, 20221467488 + 20221467489.

It is an arithmetic number, because the mean of its divisors is an integer number (20221467489).

Almost surely, 2^40442934977 is an apocalyptic number.

It is an amenable number.

40442934977 is a deficient number, since it is larger than the sum of its proper divisors (1).

40442934977 is an equidigital number, since it uses as much as digits as its factorization.

40442934977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 53.

The spelling of 40442934977 in words is "forty billion, four hundred forty-two million, nine hundred thirty-four thousand, nine hundred seventy-seven".