8135887021011 has 6 divisors (see below), whose sum is σ = 11751836808140. Its totient is φ = 5423924680668.

The previous prime is 8135887020991. The next prime is 8135887021039. The reversal of 8135887021011 is 1101207885318.

8135887021011 is a `hidden beast` number, since 8 + 1 + 358 + 8 + 70 + 210 + 11 = 666.

It is not a de Polignac number, because 8135887021011 - 2⁵ = 8135887020979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8135887021111) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 451993723381 + ... + 451993723398.

Almost surely, 2^{8135887021011} is an apocalyptic number.

8135887021011 is a deficient number, since it is larger than the sum of its proper divisors (3615949787129).

8135887021011 is a wasteful number, since it uses less digits than its factorization.

8135887021011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 903987446785 (or 903987446782 counting only the distinct ones).

The product of its (nonzero) digits is 107520, while the sum is 45.

The spelling of 8135887021011 in words is "eight trillion, one hundred thirty-five billion, eight hundred eighty-seven million, twenty-one thousand, eleven".