9009677977 has 2 divisors, whose sum is σ = 9009677978. Its totient is φ = 9009677976.

The previous prime is 9009677939. The next prime is 9009678017. The reversal of 9009677977 is 7797769009.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7078866496 + 1930811481 = 84136^2 + 43941^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9009677977 is a prime.

It is not a weakly prime, because it can be changed into another prime (9009677927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4504838988 + 4504838989.

It is an arithmetic number, because the mean of its divisors is an integer number (4504838989).

Almost surely, 2^9009677977 is an apocalyptic number.

It is an amenable number.

9009677977 is a deficient number, since it is larger than the sum of its proper divisors (1).

9009677977 is an equidigital number, since it uses as much as digits as its factorization.

9009677977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10501974, while the sum is 61.

The square root of 9009677977 is about 94919.3235173956. The cubic root of 9009677977 is about 2080.8291486769.

The spelling of 9009677977 in words is "nine billion, nine million, six hundred seventy-seven thousand, nine hundred seventy-seven".