40042608233 has 2 divisors, whose sum is σ = 40042608234. Its totient is φ = 40042608232.

The previous prime is 40042608227. The next prime is 40042608257. The reversal of 40042608233 is 33280624004.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21128657449 + 18913950784 = 145357^2 + 137528^2 .

It is a cyclic number.

It is not a de Polignac number, because 40042608233 - 2⁴ = 40042608217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 40042608233.

It is not a weakly prime, because it can be changed into another prime (40042608733) 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 as a sum of consecutive naturals, namely, 20021304116 + 20021304117.

It is an arithmetic number, because the mean of its divisors is an integer number (20021304117).

Almost surely, 2^40042608233 is an apocalyptic number.

It is an amenable number.

40042608233 is a deficient number, since it is larger than the sum of its proper divisors (1).

40042608233 is an equidigital number, since it uses as much as digits as its factorization.

40042608233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 40042608233 in words is "forty billion, forty-two million, six hundred eight thousand, two hundred thirty-three".