9882995861 has 2 divisors, whose sum is σ = 9882995862. Its totient is φ = 9882995860.

The previous prime is 9882995813. The next prime is 9882995911. The reversal of 9882995861 is 1685992889.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9719002225 + 163993636 = 98585^2 + 12806^2 .

It is a cyclic number.

It is not a de Polignac number, because 9882995861 - 2⁶ = 9882995797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9882991861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4941497930 + 4941497931.

It is an arithmetic number, because the mean of its divisors is an integer number (4941497931).

Almost surely, 2^9882995861 is an apocalyptic number.

It is an amenable number.

9882995861 is a deficient number, since it is larger than the sum of its proper divisors (1).

9882995861 is an equidigital number, since it uses as much as digits as its factorization.

9882995861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 22394880, while the sum is 65.

The square root of 9882995861 is about 99413.2579739745. The cubic root of 9882995861 is about 2145.9991115336. Note that the first 3 decimals are identical.

The spelling of 9882995861 in words is "nine billion, eight hundred eighty-two million, nine hundred ninety-five thousand, eight hundred sixty-one".