40235216929 has 2 divisors, whose sum is σ = 40235216930. Its totient is φ = 40235216928.

The previous prime is 40235216909. The next prime is 40235216941. The reversal of 40235216929 is 92961253204.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 25296266304 + 14938950625 = 159048^2 + 122225^2 .

It is a cyclic number.

It is not a de Polignac number, because 40235216929 - 2²¹ = 40233119777 is a prime.

It is not a weakly prime, because it can be changed into another prime (40235216909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20117608464 + 20117608465.

It is an arithmetic number, because the mean of its divisors is an integer number (20117608465).

Almost surely, 2^40235216929 is an apocalyptic number.

It is an amenable number.

40235216929 is a deficient number, since it is larger than the sum of its proper divisors (1).

40235216929 is an equidigital number, since it uses as much as digits as its factorization.

40235216929 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 233280, while the sum is 43.

The spelling of 40235216929 in words is "forty billion, two hundred thirty-five million, two hundred sixteen thousand, nine hundred twenty-nine".