8215277136 has 40 divisors (see below), whose sum is σ = 23152146144. Its totient is φ = 2489477760.

The previous prime is 8215277131. The next prime is 8215277143. The reversal of 8215277136 is 6317725128.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8215277131) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 7779091 + ... + 7780146.

Almost surely, 2^8215277136 is an apocalyptic number.

It is an amenable number.

8215277136 is an abundant number, since it is smaller than the sum of its proper divisors (14936869008).

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

8215277136 is a wasteful number, since it uses less digits than its factorization.

8215277136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15559259 (or 15559253 counting only the distinct ones).

The product of its digits is 141120, while the sum is 42.

The square root of 8215277136 is about 90638.1660008630. The cubic root of 8215277136 is about 2017.7812071767.

The spelling of 8215277136 in words is "eight billion, two hundred fifteen million, two hundred seventy-seven thousand, one hundred thirty-six".