40430252089 has 2 divisors, whose sum is σ = 40430252090. Its totient is φ = 40430252088.

The previous prime is 40430252087. The next prime is 40430252099. The reversal of 40430252089 is 98025203404.

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., 40323852864 + 106399225 = 200808^2 + 10315^2 .

It is a cyclic number.

It is not a de Polignac number, because 40430252089 - 2¹ = 40430252087 is a prime.

Together with 40430252087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (40430252087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20215126044 + 20215126045.

It is an arithmetic number, because the mean of its divisors is an integer number (20215126045).

Almost surely, 2^40430252089 is an apocalyptic number.

It is an amenable number.

40430252089 is a deficient number, since it is larger than the sum of its proper divisors (1).

40430252089 is an equidigital number, since it uses as much as digits as its factorization.

40430252089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 37.

The spelling of 40430252089 in words is "forty billion, four hundred thirty million, two hundred fifty-two thousand, eighty-nine".