9885746957 has 2 divisors, whose sum is σ = 9885746958. Its totient is φ = 9885746956.

The previous prime is 9885746933. The next prime is 9885746963. The reversal of 9885746957 is 7596475889.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9781012201 + 104734756 = 98899^2 + 10234^2 .

It is an emirp because it is prime and its reverse (7596475889) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9885746957 - 2⁸ = 9885746701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9885743957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4942873478 + 4942873479.

It is an arithmetic number, because the mean of its divisors is an integer number (4942873479).

Almost surely, 2^9885746957 is an apocalyptic number.

It is an amenable number.

9885746957 is a deficient number, since it is larger than the sum of its proper divisors (1).

9885746957 is an equidigital number, since it uses as much as digits as its factorization.

9885746957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 152409600, while the sum is 68.

The square root of 9885746957 is about 99427.0936767238. The cubic root of 9885746957 is about 2146.1982178886.

The spelling of 9885746957 in words is "nine billion, eight hundred eighty-five million, seven hundred forty-six thousand, nine hundred fifty-seven".