40287154009 has 2 divisors, whose sum is σ = 40287154010. Its totient is φ = 40287154008.

The previous prime is 40287154007. The next prime is 40287154043. The reversal of 40287154009 is 90045178204.

40287154009 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., 30604003600 + 9683150409 = 174940^2 + 98403^2 .

It is a cyclic number.

It is not a de Polignac number, because 40287154009 - 2¹ = 40287154007 is a prime.

Together with 40287154007, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40287154001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20143577004 + 20143577005.

It is an arithmetic number, because the mean of its divisors is an integer number (20143577005).

Almost surely, 2^40287154009 is an apocalyptic number.

It is an amenable number.

40287154009 is a deficient number, since it is larger than the sum of its proper divisors (1).

40287154009 is an equidigital number, since it uses as much as digits as its factorization.

40287154009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 80640, while the sum is 40.

The spelling of 40287154009 in words is "forty billion, two hundred eighty-seven million, one hundred fifty-four thousand, nine".