1268746010377 has 2 divisors, whose sum is σ = 1268746010378. Its totient is φ = 1268746010376.

The previous prime is 1268746010297. The next prime is 1268746010401. The reversal of 1268746010377 is 7730106478621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1130796165321 + 137949845056 = 1063389^2 + 371416^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1268746010377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1268746013377) 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, 634373005188 + 634373005189.

It is an arithmetic number, because the mean of its divisors is an integer number (634373005189).

Almost surely, 2^{1268746010377} is an apocalyptic number.

It is an amenable number.

1268746010377 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268746010377 is an equidigital number, since it uses as much as digits as its factorization.

1268746010377 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2370816, while the sum is 52.

The spelling of 1268746010377 in words is "one trillion, two hundred sixty-eight billion, seven hundred forty-six million, ten thousand, three hundred seventy-seven".