6523728456 has 64 divisors (see below), whose sum is σ = 18677422080. Its totient is φ = 1860102720.

The previous prime is 6523728403. The next prime is 6523728473. The reversal of 6523728456 is 6548273256.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42945 + ... + 122031.

It is an arithmetic number, because the mean of its divisors is an integer number (291834720).

Almost surely, 2^6523728456 is an apocalyptic number.

It is an amenable number.

6523728456 is an abundant number, since it is smaller than the sum of its proper divisors (12153693624).

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

6523728456 is a wasteful number, since it uses less digits than its factorization.

6523728456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79594 (or 79590 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 48.

The square root of 6523728456 is about 80769.6010637666. The cubic root of 6523728456 is about 1868.5237623294.

The spelling of 6523728456 in words is "six billion, five hundred twenty-three million, seven hundred twenty-eight thousand, four hundred fifty-six".