9842876081 has 2 divisors, whose sum is σ = 9842876082. Its totient is φ = 9842876080.

The previous prime is 9842876023. The next prime is 9842876089. The reversal of 9842876081 is 1806782489.

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., 7036525456 + 2806350625 = 83884^2 + 52975^2 .

It is a cyclic number.

It is not a de Polignac number, because 9842876081 - 2²⁶ = 9775767217 is a prime.

It is a super-2 number, since 2×9842876081² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (9842876089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4921438040 + 4921438041.

It is an arithmetic number, because the mean of its divisors is an integer number (4921438041).

Almost surely, 2^9842876081 is an apocalyptic number.

It is an amenable number.

9842876081 is a deficient number, since it is larger than the sum of its proper divisors (1).

9842876081 is an equidigital number, since it uses as much as digits as its factorization.

9842876081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 53.

The square root of 9842876081 is about 99211.2699293785. The cubic root of 9842876081 is about 2143.0912962716.

The spelling of 9842876081 in words is "nine billion, eight hundred forty-two million, eight hundred seventy-six thousand, eighty-one".