8495572644 has 36 divisors (see below), whose sum is σ = 23126837916. Its totient is φ = 2614022208.

The previous prime is 8495572637. The next prime is 8495572669. The reversal of 8495572644 is 4462755948.

8495572644 is a `hidden beast` number, since 8 + 4 + 9 + 5 + 572 + 64 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 2757510144 + 5738062500 = 52512^2 + 75750^2 .

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

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, 9075999 + ... + 9076934.

Almost surely, 2^8495572644 is an apocalyptic number.

It is an amenable number.

8495572644 is an abundant number, since it is smaller than the sum of its proper divisors (14631265272).

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

8495572644 is a wasteful number, since it uses less digits than its factorization.

8495572644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18152956 (or 18152951 counting only the distinct ones).

The product of its digits is 9676800, while the sum is 54.

The square root of 8495572644 is about 92171.4307364272. The cubic root of 8495572644 is about 2040.4731572602.

The spelling of 8495572644 in words is "eight billion, four hundred ninety-five million, five hundred seventy-two thousand, six hundred forty-four".