1361253735277 has 2 divisors, whose sum is σ = 1361253735278. Its totient is φ = 1361253735276.

The previous prime is 1361253735271. The next prime is 1361253735293. The reversal of 1361253735277 is 7725373521631.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1111704531876 + 249549203401 = 1054374^2 + 499549^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1361253735277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1361253735271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 680626867638 + 680626867639.

It is an arithmetic number, because the mean of its divisors is an integer number (680626867639).

Almost surely, 2^{1361253735277} is an apocalyptic number.

It is an amenable number.

1361253735277 is a deficient number, since it is larger than the sum of its proper divisors (1).

1361253735277 is an equidigital number, since it uses as much as digits as its factorization.

1361253735277 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5556600, while the sum is 52.

The spelling of 1361253735277 in words is "one trillion, three hundred sixty-one billion, two hundred fifty-three million, seven hundred thirty-five thousand, two hundred seventy-seven".