9877777423229 has 2 divisors, whose sum is σ = 9877777423230. Its totient is φ = 9877777423228.

The previous prime is 9877777423207. The next prime is 9877777423289. The reversal of 9877777423229 is 9223247777789.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6914938159129 + 2962839264100 = 2629627^2 + 1721290^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9877777423229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9877777423289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4938888711614 + 4938888711615.

It is an arithmetic number, because the mean of its divisors is an integer number (4938888711615).

Almost surely, 2^{9877777423229} is an apocalyptic number.

It is an amenable number.

9877777423229 is a deficient number, since it is larger than the sum of its proper divisors (1).

9877777423229 is an equidigital number, since it uses as much as digits as its factorization.

9877777423229 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1045529856, while the sum is 74.

The spelling of 9877777423229 in words is "nine trillion, eight hundred seventy-seven billion, seven hundred seventy-seven million, four hundred twenty-three thousand, two hundred twenty-nine".