40235622607021 has 2 divisors, whose sum is σ = 40235622607022. Its totient is φ = 40235622607020.

The previous prime is 40235622607009. The next prime is 40235622607121. The reversal of 40235622607021 is 12070622653204.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31887649017225 + 8347973589796 = 5646915^2 + 2889286^2 .

It is a cyclic number.

It is not a de Polignac number, because 40235622607021 - 2⁵ = 40235622606989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40235622607121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20117811303510 + 20117811303511.

It is an arithmetic number, because the mean of its divisors is an integer number (20117811303511).

Almost surely, 2^{40235622607021} is an apocalyptic number.

It is an amenable number.

40235622607021 is a deficient number, since it is larger than the sum of its proper divisors (1).

40235622607021 is an equidigital number, since it uses as much as digits as its factorization.

40235622607021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 40235622607021 in words is "forty trillion, two hundred thirty-five billion, six hundred twenty-two million, six hundred seven thousand, twenty-one".