40234225909 has 2 divisors, whose sum is σ = 40234225910. Its totient is φ = 40234225908.

The previous prime is 40234225883. The next prime is 40234225919. The reversal of 40234225909 is 90952243204.

40234225909 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., 38699545284 + 1534680625 = 196722^2 + 39175^2 .

It is a cyclic number.

It is not a de Polignac number, because 40234225909 - 2³¹ = 38086742261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40234225919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20117112954 + 20117112955.

It is an arithmetic number, because the mean of its divisors is an integer number (20117112955).

Almost surely, 2^40234225909 is an apocalyptic number.

It is an amenable number.

40234225909 is a deficient number, since it is larger than the sum of its proper divisors (1).

40234225909 is an equidigital number, since it uses as much as digits as its factorization.

40234225909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 40.

The spelling of 40234225909 in words is "forty billion, two hundred thirty-four million, two hundred twenty-five thousand, nine hundred nine".