40745222593 has 2 divisors, whose sum is σ = 40745222594. Its totient is φ = 40745222592.

The previous prime is 40745222537. The next prime is 40745222629. The reversal of 40745222593 is 39522254704.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 35865920689 + 4879301904 = 189383^2 + 69852^2 .

It is a cyclic number.

It is not a de Polignac number, because 40745222593 - 2²¹ = 40743125441 is a prime.

It is not a weakly prime, because it can be changed into another prime (40745222503) 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, 20372611296 + 20372611297.

It is an arithmetic number, because the mean of its divisors is an integer number (20372611297).

Almost surely, 2^40745222593 is an apocalyptic number.

It is an amenable number.

40745222593 is a deficient number, since it is larger than the sum of its proper divisors (1).

40745222593 is an equidigital number, since it uses as much as digits as its factorization.

40745222593 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 43.

The spelling of 40745222593 in words is "forty billion, seven hundred forty-five million, two hundred twenty-two thousand, five hundred ninety-three".