8538623136 has 72 divisors (see below), whose sum is σ = 25065016704. Its totient is φ = 2754391680.

The previous prime is 8538623113. The next prime is 8538623143. The reversal of 8538623136 is 6313268358.

8538623136 is a `hidden beast` number, since 8 + 5 + 3 + 8 + 623 + 13 + 6 = 666.

It is a tau number, because it is divible by the number of its divisors (72).

It is a junction number, because it is equal to n+sod(n) for n = 8538623091 and 8538623100.

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, 469266 + ... + 487121.

It is an arithmetic number, because the mean of its divisors is an integer number (348125232).

Almost surely, 2^8538623136 is an apocalyptic number.

It is an amenable number.

8538623136 is an abundant number, since it is smaller than the sum of its proper divisors (16526393568).

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

8538623136 is a wasteful number, since it uses less digits than its factorization.

8538623136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 956434 (or 956423 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The square root of 8538623136 is about 92404.6705313103. The cubic root of 8538623136 is about 2043.9139851698.

The spelling of 8538623136 in words is "eight billion, five hundred thirty-eight million, six hundred twenty-three thousand, one hundred thirty-six".