6523021648 has 40 divisors (see below), whose sum is σ = 14847862176. Its totient is φ = 2736931200.

The previous prime is 6523021579. The next prime is 6523021657. The reversal of 6523021648 is 8461203256.

It is a super-2 number, since 2×6523021648² = 85099622840553271808, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1423198 + ... + 1427773.

Almost surely, 2^6523021648 is an apocalyptic number.

It is an amenable number.

6523021648 is an abundant number, since it is smaller than the sum of its proper divisors (8324840528).

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

6523021648 is a wasteful number, since it uses less digits than its factorization.

6523021648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2851003 (or 2850997 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 37.

The square root of 6523021648 is about 80765.2254872108. The cubic root of 6523021648 is about 1868.4562786682.

The spelling of 6523021648 in words is "six billion, five hundred twenty-three million, twenty-one thousand, six hundred forty-eight".