8136052711881 has 24 divisors (see below), whose sum is σ = 11921098629120. Its totient is φ = 4928940640512.

The previous prime is 8136052711873. The next prime is 8136052711883. The reversal of 8136052711881 is 1881172506318.

It is a happy number.

It is not a de Polignac number, because 8136052711881 - 2³ = 8136052711873 is a prime.

It is a super-2 number, since 2×8136052711881² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (8136052711883) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 161770441 + ... + 161820726.

It is an arithmetic number, because the mean of its divisors is an integer number (496712442880).

Almost surely, 2^{8136052711881} is an apocalyptic number.

It is an amenable number.

8136052711881 is a deficient number, since it is larger than the sum of its proper divisors (3785045917239).

8136052711881 is a wasteful number, since it uses less digits than its factorization.

8136052711881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 323591233 (or 323591216 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 51.

The spelling of 8136052711881 in words is "eight trillion, one hundred thirty-six billion, fifty-two million, seven hundred eleven thousand, eight hundred eighty-one".