90860570998871 has 2 divisors, whose sum is σ = 90860570998872. Its totient is φ = 90860570998870.

The previous prime is 90860570998867. The next prime is 90860570998909. The reversal of 90860570998871 is 17889907506809.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 90860570998871 - 2² = 90860570998867 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 90860570998792 and 90860570998801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (90860570998861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45430285499435 + 45430285499436.

It is an arithmetic number, because the mean of its divisors is an integer number (45430285499436).

Almost surely, 2^{90860570998871} is an apocalyptic number.

90860570998871 is a deficient number, since it is larger than the sum of its proper divisors (1).

90860570998871 is an equidigital number, since it uses as much as digits as its factorization.

90860570998871 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 548674560, while the sum is 77.

The spelling of 90860570998871 in words is "ninety trillion, eight hundred sixty billion, five hundred seventy million, nine hundred ninety-eight thousand, eight hundred seventy-one".