9996805877 has 2 divisors, whose sum is σ = 9996805878. Its totient is φ = 9996805876.

The previous prime is 9996805873. The next prime is 9996805883. The reversal of 9996805877 is 7785086999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8747112676 + 1249693201 = 93526^2 + 35351^2 .

It is a cyclic number.

It is not a de Polignac number, because 9996805877 - 2² = 9996805873 is a prime.

It is a super-2 number, since 2×9996805877² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9996805873) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4998402938 + 4998402939.

It is an arithmetic number, because the mean of its divisors is an integer number (4998402939).

Almost surely, 2^9996805877 is an apocalyptic number.

It is an amenable number.

9996805877 is a deficient number, since it is larger than the sum of its proper divisors (1).

9996805877 is an equidigital number, since it uses as much as digits as its factorization.

9996805877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68584320, while the sum is 68.

The square root of 9996805877 is about 99984.0281094936. The cubic root of 9996805877 is about 2154.2052812916.

The spelling of 9996805877 in words is "nine billion, nine hundred ninety-six million, eight hundred five thousand, eight hundred seventy-seven".