8136760644 has 36 divisors (see below), whose sum is σ = 20760156144. Its totient is φ = 2686904112.

The previous prime is 8136760633. The next prime is 8136760679. The reversal of 8136760644 is 4460676318.

It is a happy number.

8136760644 is a `hidden beast` number, since 8 + 1 + 36 + 7 + 606 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a self number, because there is not a number n which added to its sum of digits gives 8136760644.

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, 1052322 + ... + 1060025.

It is an arithmetic number, because the mean of its divisors is an integer number (576671004).

Almost surely, 2^8136760644 is an apocalyptic number.

It is an amenable number.

8136760644 is an abundant number, since it is smaller than the sum of its proper divisors (12623395500).

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

8136760644 is a wasteful number, since it uses less digits than its factorization.

8136760644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112464 (or 2112459 counting only the distinct ones).

The product of its (nonzero) digits is 580608, while the sum is 45.

The square root of 8136760644 is about 90203.9946122122. The cubic root of 8136760644 is about 2011.3323875513.

The spelling of 8136760644 in words is "eight billion, one hundred thirty-six million, seven hundred sixty thousand, six hundred forty-four".