7728733896 has 32 divisors (see below), whose sum is σ = 20808130560. Its totient is φ = 2378071872.

The previous prime is 7728733889. The next prime is 7728733913. The reversal of 7728733896 is 6983378277.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12385480 + ... + 12386103.

It is an arithmetic number, because the mean of its divisors is an integer number (650254080).

Almost surely, 2^7728733896 is an apocalyptic number.

It is an amenable number.

7728733896 is an abundant number, since it is smaller than the sum of its proper divisors (13079396664).

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

7728733896 is a wasteful number, since it uses less digits than its factorization.

7728733896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24771605 (or 24771601 counting only the distinct ones).

The product of its digits is 21337344, while the sum is 60.

The square root of 7728733896 is about 87913.2179822807. The cubic root of 7728733896 is about 1977.1340620646.

The spelling of 7728733896 in words is "seven billion, seven hundred twenty-eight million, seven hundred thirty-three thousand, eight hundred ninety-six".