28501678296 has 288 divisors, whose sum is σ = 97491420000. Its totient is φ = 7515825408.

The previous prime is 28501678267. The next prime is 28501678307. The reversal of 28501678296 is 69287610582.

28501678296 is a `hidden beast` number, since 285 + 0 + 1 + 6 + 78 + 296 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 4170210 + ... + 4177038.

It is an arithmetic number, because the mean of its divisors is an integer number (338511875).

Almost surely, 2^28501678296 is an apocalyptic number.

28501678296 is a gapful number since it is divisible by the number (26) 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 28501678296, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48745710000).

28501678296 is an abundant number, since it is smaller than the sum of its proper divisors (68989741704).

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

28501678296 is a wasteful number, since it uses less digits than its factorization.

28501678296 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6888 (or 6854 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 54.

The spelling of 28501678296 in words is "twenty-eight billion, five hundred one million, six hundred seventy-eight thousand, two hundred ninety-six".