28599976328 has 256 divisors, whose sum is σ = 72194457600. Its totient is φ = 10287648000.

The previous prime is 28599976303. The next prime is 28599976351. The reversal of 28599976328 is 82367999582.

Its product of digits (117573120) is a multiple of the sum of its prime factors (512).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 105534833 + ... + 105535103.

It is an arithmetic number, because the mean of its divisors is an integer number (282009600).

Almost surely, 2^28599976328 is an apocalyptic number.

28599976328 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28599976328, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36097228800).

28599976328 is an abundant number, since it is smaller than the sum of its proper divisors (43594481272).

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

28599976328 is a wasteful number, since it uses less digits than its factorization.

28599976328 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512 (or 508 counting only the distinct ones).

The product of its digits is 117573120, while the sum is 68.

The spelling of 28599976328 in words is "twenty-eight billion, five hundred ninety-nine million, nine hundred seventy-six thousand, three hundred twenty-eight".