40011452009 has 2 divisors, whose sum is σ = 40011452010. Its totient is φ = 40011452008.

The previous prime is 40011452003. The next prime is 40011452057. The reversal of 40011452009 is 90025411004.

40011452009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39790275625 + 221176384 = 199475^2 + 14872^2 .

It is a cyclic number.

It is not a de Polignac number, because 40011452009 - 2¹² = 40011447913 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (40011452003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20005726004 + 20005726005.

It is an arithmetic number, because the mean of its divisors is an integer number (20005726005).

Almost surely, 2^40011452009 is an apocalyptic number.

It is an amenable number.

40011452009 is a deficient number, since it is larger than the sum of its proper divisors (1).

40011452009 is an equidigital number, since it uses as much as digits as its factorization.

40011452009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

The spelling of 40011452009 in words is "forty billion, eleven million, four hundred fifty-two thousand, nine".