13455782131511 has 2 divisors, whose sum is σ = 13455782131512. Its totient is φ = 13455782131510.

The previous prime is 13455782131489. The next prime is 13455782131577. The reversal of 13455782131511 is 11513128755431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13455782131511 - 2⁶ = 13455782131447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13455785131511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6727891065755 + 6727891065756.

It is an arithmetic number, because the mean of its divisors is an integer number (6727891065756).

Almost surely, 2^{13455782131511} is an apocalyptic number.

13455782131511 is a deficient number, since it is larger than the sum of its proper divisors (1).

13455782131511 is an equidigital number, since it uses as much as digits as its factorization.

13455782131511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 504000, while the sum is 47.

The spelling of 13455782131511 in words is "thirteen trillion, four hundred fifty-five billion, seven hundred eighty-two million, one hundred thirty-one thousand, five hundred eleven".