13738771260761 has 2 divisors, whose sum is σ = 13738771260762. Its totient is φ = 13738771260760.

The previous prime is 13738771260749. The next prime is 13738771260791. The reversal of 13738771260761 is 16706217783731.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11332413313225 + 2406357947536 = 3366365^2 + 1551244^2 .

It is a cyclic number.

It is not a de Polignac number, because 13738771260761 - 2¹⁰ = 13738771259737 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13738771260761.

It is not a weakly prime, because it can be changed into another prime (13738771260791) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6869385630380 + 6869385630381.

It is an arithmetic number, because the mean of its divisors is an integer number (6869385630381).

Almost surely, 2^{13738771260761} is an apocalyptic number.

It is an amenable number.

13738771260761 is a deficient number, since it is larger than the sum of its proper divisors (1).

13738771260761 is an equidigital number, since it uses as much as digits as its factorization.

13738771260761 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12446784, while the sum is 59.

The spelling of 13738771260761 in words is "thirteen trillion, seven hundred thirty-eight billion, seven hundred seventy-one million, two hundred sixty thousand, seven hundred sixty-one".