28315234080 has 432 divisors, whose sum is σ = 113249223360. Its totient is φ = 6423266304.

The previous prime is 28315234043. The next prime is 28315234093. The reversal of 28315234080 is 8043251382.

28315234080 is a `hidden beast` number, since 28 + 31 + 523 + 4 + 0 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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 71 ways as a sum of consecutive naturals, for example, 9806397 + ... + 9809283.

It is an arithmetic number, because the mean of its divisors is an integer number (262150980).

Almost surely, 2^28315234080 is an apocalyptic number.

28315234080 is a gapful number since it is divisible by the number (20) 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 28315234080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (56624611680).

28315234080 is an abundant number, since it is smaller than the sum of its proper divisors (84933989280).

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

28315234080 is a wasteful number, since it uses less digits than its factorization.

28315234080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3061 (or 3043 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

The spelling of 28315234080 in words is "twenty-eight billion, three hundred fifteen million, two hundred thirty-four thousand, eighty".