8649744016 has 15 divisors (see below), whose sum is σ = 16759599843. Its totient is φ = 4324686000.

The previous prime is 8649744011. The next prime is 8649744071. The reversal of 8649744016 is 6104479468.

The square root of 8649744016 is 93004.

It is a perfect power (a square), and thus also a powerful number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8649744011) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 360391 + ... + 383641.

Almost surely, 2^8649744016 is an apocalyptic number.

8649744016 is the 93004-th square number.

It is an amenable number.

8649744016 is a deficient number, since it is larger than the sum of its proper divisors (8109855827).

8649744016 is an frugal number, since it uses more digits than its factorization.

8649744016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46510 (or 23253 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The cubic root of 8649744016 is about 2052.7422366234.

Multiplying 8649744016 by its sum of digits (49), we get a square (423837456784 = 651028²).

The spelling of 8649744016 in words is "eight billion, six hundred forty-nine million, seven hundred forty-four thousand, sixteen".