40433422421389 has 2 divisors, whose sum is σ = 40433422421390. Its totient is φ = 40433422421388.

The previous prime is 40433422421303. The next prime is 40433422421393. The reversal of 40433422421389 is 98312422433404.

40433422421389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 39791709276489 + 641713144900 = 6308067^2 + 801070^2 .

It is a cyclic number.

It is not a de Polignac number, because 40433422421389 - 2⁹ = 40433422420877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40433422421489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20216711210694 + 20216711210695.

It is an arithmetic number, because the mean of its divisors is an integer number (20216711210695).

Almost surely, 2^{40433422421389} is an apocalyptic number.

It is an amenable number.

40433422421389 is a deficient number, since it is larger than the sum of its proper divisors (1).

40433422421389 is an equidigital number, since it uses as much as digits as its factorization.

40433422421389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3981312, while the sum is 49.

The spelling of 40433422421389 in words is "forty trillion, four hundred thirty-three billion, four hundred twenty-two million, four hundred twenty-one thousand, three hundred eighty-nine".