8135887020993 has 12 divisors (see below), whose sum is σ = 11861667060048. Its totient is φ = 5373233795160.

The previous prime is 8135887020991. The next prime is 8135887021039. The reversal of 8135887020993 is 3990207885318.

8135887020993 is a `hidden beast` number, since 8 + 1 + 358 + 8 + 70 + 209 + 9 + 3 = 666.

It is not a de Polignac number, because 8135887020993 - 2¹ = 8135887020991 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8135887020993.

It is not an unprimeable number, because it can be changed into a prime (8135887020991) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4224239443 + ... + 4224241368.

It is an arithmetic number, because the mean of its divisors is an integer number (988472255004).

Almost surely, 2^{8135887020993} is an apocalyptic number.

It is an amenable number.

8135887020993 is a deficient number, since it is larger than the sum of its proper divisors (3725780039055).

8135887020993 is a wasteful number, since it uses less digits than its factorization.

8135887020993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448480924 (or 8448480921 counting only the distinct ones).

The product of its (nonzero) digits is 26127360, while the sum is 63.

The spelling of 8135887020993 in words is "eight trillion, one hundred thirty-five billion, eight hundred eighty-seven million, twenty thousand, nine hundred ninety-three".