40399041583 has 2 divisors, whose sum is σ = 40399041584. Its totient is φ = 40399041582.

The previous prime is 40399041577. The next prime is 40399041719. The reversal of 40399041583 is 38514099304.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40399041583 - 2¹³ = 40399033391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40399044583) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20199520791 + 20199520792.

It is an arithmetic number, because the mean of its divisors is an integer number (20199520792).

Almost surely, 2^40399041583 is an apocalyptic number.

40399041583 is a deficient number, since it is larger than the sum of its proper divisors (1).

40399041583 is an equidigital number, since it uses as much as digits as its factorization.

40399041583 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 466560, while the sum is 46.

The spelling of 40399041583 in words is "forty billion, three hundred ninety-nine million, forty-one thousand, five hundred eighty-three".