8135102820 has 96 divisors (see below), whose sum is σ = 25973474688. Its totient is φ = 1884690432.

The previous prime is 8135102813. The next prime is 8135102869. The reversal of 8135102820 is 282015318.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 293494 + ... + 320013.

It is an arithmetic number, because the mean of its divisors is an integer number (270557028).

Almost surely, 2^8135102820 is an apocalyptic number.

It is an amenable number.

8135102820 is an abundant number, since it is smaller than the sum of its proper divisors (17838371868).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8135102820 is a wasteful number, since it uses less digits than its factorization.

8135102820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 613549 (or 613547 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 30.

The square root of 8135102820 is about 90194.8048393032. The cubic root of 8135102820 is about 2011.1957786584.

The spelling of 8135102820 in words is "eight billion, one hundred thirty-five million, one hundred two thousand, eight hundred twenty".