8601208644 has 48 divisors (see below), whose sum is σ = 23469974528. Its totient is φ = 2400336288.

The previous prime is 8601208643. The next prime is 8601208669. The reversal of 8601208644 is 4468021068.

It is not an unprimeable number, because it can be changed into a prime (8601208643) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1187032 + ... + 1194255.

Almost surely, 2^8601208644 is an apocalyptic number.

8601208644 is a gapful number since it is divisible by the number (84) formed by its first and last digit.

It is an amenable number.

8601208644 is an abundant number, since it is smaller than the sum of its proper divisors (14868765884).

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

8601208644 is a wasteful number, since it uses less digits than its factorization.

8601208644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2381344 (or 2381342 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 39.

The square root of 8601208644 is about 92742.7012977302. The cubic root of 8601208644 is about 2048.8955894549.

The spelling of 8601208644 in words is "eight billion, six hundred one million, two hundred eight thousand, six hundred forty-four".