90709000859 has 2 divisors, whose sum is σ = 90709000860. Its totient is φ = 90709000858.

The previous prime is 90709000853. The next prime is 90709000867. The reversal of 90709000859 is 95800090709.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90709000859 - 2¹⁶ = 90708935323 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (90709000853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45354500429 + 45354500430.

It is an arithmetic number, because the mean of its divisors is an integer number (45354500430).

Almost surely, 2^90709000859 is an apocalyptic number.

90709000859 is a deficient number, since it is larger than the sum of its proper divisors (1).

90709000859 is an equidigital number, since it uses as much as digits as its factorization.

90709000859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 47.

The spelling of 90709000859 in words is "ninety billion, seven hundred nine million, eight hundred fifty-nine", and thus it is an aban number.