8801078861 has 2 divisors, whose sum is σ = 8801078862. Its totient is φ = 8801078860.

The previous prime is 8801078827. The next prime is 8801078917. The reversal of 8801078861 is 1688701088.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7255802761 + 1545276100 = 85181^2 + 39310^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8801078861 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (8801078821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4400539430 + 4400539431.

It is an arithmetic number, because the mean of its divisors is an integer number (4400539431).

Almost surely, 2^8801078861 is an apocalyptic number.

It is an amenable number.

8801078861 is a deficient number, since it is larger than the sum of its proper divisors (1).

8801078861 is an equidigital number, since it uses as much as digits as its factorization.

8801078861 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 172032, while the sum is 47.

The square root of 8801078861 is about 93814.0653686855. The cubic root of 8801078861 is about 2064.6445976740.

The spelling of 8801078861 in words is "eight billion, eight hundred one million, seventy-eight thousand, eight hundred sixty-one".