11755781483447 has 2 divisors, whose sum is σ = 11755781483448. Its totient is φ = 11755781483446.

The previous prime is 11755781483443. The next prime is 11755781483483. The reversal of 11755781483447 is 74438418755711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11755781483447 - 2² = 11755781483443 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11755781483443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5877890741723 + 5877890741724.

It is an arithmetic number, because the mean of its divisors is an integer number (5877890741724).

Almost surely, 2^{11755781483447} is an apocalyptic number.

11755781483447 is a deficient number, since it is larger than the sum of its proper divisors (1).

11755781483447 is an equidigital number, since it uses as much as digits as its factorization.

11755781483447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 105369600, while the sum is 65.

The spelling of 11755781483447 in words is "eleven trillion, seven hundred fifty-five billion, seven hundred eighty-one million, four hundred eighty-three thousand, four hundred forty-seven".