8135787355208 has 12 divisors (see below), whose sum is σ = 15254616417795. Its totient is φ = 4067889643800.

The previous prime is 8135787355181. The next prime is 8135787355231. The reversal of 8135787355208 is 8025537875318.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in only one way, i.e., 4067893677604 + 4067893677604 = 2016902^2 + 2016902^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=2016902.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 7563383 + ... + 8571833.

Almost surely, 2^{8135787355208} is an apocalyptic number.

It is an amenable number.

8135787355208 is a deficient number, since it is larger than the sum of its proper divisors (7118829062587).

8135787355208 is an frugal number, since it uses more digits than its factorization.

8135787355208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2016908 (or 1008453 counting only the distinct ones).

The product of its (nonzero) digits is 56448000, while the sum is 62.

The spelling of 8135787355208 in words is "eight trillion, one hundred thirty-five billion, seven hundred eighty-seven million, three hundred fifty-five thousand, two hundred eight".