28792659856 has 45 divisors (see below), whose sum is σ = 56826361051. Its totient is φ = 14132640992.

The previous prime is 28792659827. The next prime is 28792659859. The reversal of 28792659856 is 65895629782.

It is a happy number.

The square root of 28792659856 is 169684.

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

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28792659791 and 28792659800.

It is not an unprimeable number, because it can be changed into a prime (28792659859) by changing a digit.

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 8 ways as a sum of consecutive naturals, for example, 40045065 + ... + 40045783.

Almost surely, 2^28792659856 is an apocalyptic number.

28792659856 is the 169684-th square number.

It is an amenable number.

28792659856 is a deficient number, since it is larger than the sum of its proper divisors (28033701195).

28792659856 is an frugal number, since it uses more digits than its factorization.

28792659856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1564 (or 780 counting only the distinct ones).

The product of its digits is 130636800, while the sum is 67.

The spelling of 28792659856 in words is "twenty-eight billion, seven hundred ninety-two million, six hundred fifty-nine thousand, eight hundred fifty-six".