8135786996 has 24 divisors (see below), whose sum is σ = 14344031520. Its totient is φ = 4037578272.

The previous prime is 8135786959. The next prime is 8135787029. The reversal of 8135786996 is 6996875318.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 381266 + ... + 402038.

It is an arithmetic number, because the mean of its divisors is an integer number (597667980).

Almost surely, 2^8135786996 is an apocalyptic number.

It is an amenable number.

8135786996 is a deficient number, since it is larger than the sum of its proper divisors (6208244524).

8135786996 is a wasteful number, since it uses less digits than its factorization.

8135786996 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21503 (or 21501 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 62.

The square root of 8135786996 is about 90198.5975278995. The cubic root of 8135786996 is about 2011.2521587412.

The spelling of 8135786996 in words is "eight billion, one hundred thirty-five million, seven hundred eighty-six thousand, nine hundred ninety-six".