9090773977 has 2 divisors, whose sum is σ = 9090773978. Its totient is φ = 9090773976.

The previous prime is 9090773959. The next prime is 9090773999. The reversal of 9090773977 is 7793770909.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8370603081 + 720170896 = 91491^2 + 26836^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9090773977 is a prime.

It is not a weakly prime, because it can be changed into another prime (9090773917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4545386988 + 4545386989.

It is an arithmetic number, because the mean of its divisors is an integer number (4545386989).

Almost surely, 2^9090773977 is an apocalyptic number.

It is an amenable number.

9090773977 is a deficient number, since it is larger than the sum of its proper divisors (1).

9090773977 is an equidigital number, since it uses as much as digits as its factorization.

9090773977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5250987, while the sum is 58.

The square root of 9090773977 is about 95345.5503786097. The cubic root of 9090773977 is about 2087.0536826881.

The spelling of 9090773977 in words is "nine billion, ninety million, seven hundred seventy-three thousand, nine hundred seventy-seven".