1283988655277 has 2 divisors, whose sum is σ = 1283988655278. Its totient is φ = 1283988655276.

The previous prime is 1283988655267. The next prime is 1283988655303. The reversal of 1283988655277 is 7725568893821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1118022857956 + 165965797321 = 1057366^2 + 407389^2 .

It is a cyclic number.

It is not a de Polignac number, because 1283988655277 - 2³⁴ = 1266808786093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1283988655277.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1283988655217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 641994327638 + 641994327639.

It is an arithmetic number, because the mean of its divisors is an integer number (641994327639).

Almost surely, 2^{1283988655277} is an apocalyptic number.

It is an amenable number.

1283988655277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1283988655277 is an equidigital number, since it uses as much as digits as its factorization.

1283988655277 is an evil number, because the sum of its binary digits is even.

The product of its digits is 406425600, while the sum is 71.

The spelling of 1283988655277 in words is "one trillion, two hundred eighty-three billion, nine hundred eighty-eight million, six hundred fifty-five thousand, two hundred seventy-seven".