8236772136 has 48 divisors (see below), whose sum is σ = 23620158900. Its totient is φ = 2584084992.

The previous prime is 8236772081. The next prime is 8236772143. The reversal of 8236772136 is 6312776328.

It can be written as a sum of positive squares in 2 ways, for example, as 7944156900 + 292615236 = 89130^2 + 17106^2 .

It is a junction number, because it is equal to n+sod(n) for n = 8236772091 and 8236772100.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3363471 + ... + 3365918.

Almost surely, 2^8236772136 is an apocalyptic number.

It is an amenable number.

8236772136 is an abundant number, since it is smaller than the sum of its proper divisors (15383386764).

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

8236772136 is a wasteful number, since it uses less digits than its factorization.

8236772136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6729418 (or 6729411 counting only the distinct ones).

The product of its digits is 508032, while the sum is 45.

The square root of 8236772136 is about 90756.6644164493. The cubic root of 8236772136 is about 2019.5394937570.

The spelling of 8236772136 in words is "eight billion, two hundred thirty-six million, seven hundred seventy-two thousand, one hundred thirty-six".