8648467644 has 12 divisors (see below), whose sum is σ = 20179757864. Its totient is φ = 2882822544.

The previous prime is 8648467621. The next prime is 8648467649. The reversal of 8648467644 is 4467648468.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8648467649) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 360352807 + ... + 360352830.

Almost surely, 2^8648467644 is an apocalyptic number.

It is an amenable number.

8648467644 is an abundant number, since it is smaller than the sum of its proper divisors (11531290220).

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

8648467644 is a wasteful number, since it uses less digits than its factorization.

8648467644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 720705644 (or 720705642 counting only the distinct ones).

The product of its digits is 24772608, while the sum is 57.

The square root of 8648467644 is about 92997.1378269245. The cubic root of 8648467644 is about 2052.6412628607.

The spelling of 8648467644 in words is "eight billion, six hundred forty-eight million, four hundred sixty-seven thousand, six hundred forty-four".