13257299681811 has 6 divisors (see below), whose sum is σ = 19149432873740. Its totient is φ = 8838199787868.

The previous prime is 13257299681777. The next prime is 13257299681917. The reversal of 13257299681811 is 11818699275231.

13257299681811 is a `hidden beast` number, since 1 + 3 + 257 + 299 + 6 + 81 + 8 + 11 = 666.

It is not a de Polignac number, because 13257299681811 - 2²³ = 13257291293203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13257299682811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 736516648981 + ... + 736516648998.

Almost surely, 2^{13257299681811} is an apocalyptic number.

13257299681811 is a deficient number, since it is larger than the sum of its proper divisors (5892133191929).

13257299681811 is a wasteful number, since it uses less digits than its factorization.

13257299681811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1473033297985 (or 1473033297982 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 63.

The spelling of 13257299681811 in words is "thirteen trillion, two hundred fifty-seven billion, two hundred ninety-nine million, six hundred eighty-one thousand, eight hundred eleven".