28700794584 has 256 divisors, whose sum is σ = 104629248000. Its totient is φ = 7062318720.

The previous prime is 28700794571. The next prime is 28700794597. The reversal of 28700794584 is 48549700782.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28700794571) and next prime (28700794597).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a self number, because there is not a number n which added to its sum of digits gives 28700794584.

It is a congruent number.

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, 270597 + ... + 361419.

It is an arithmetic number, because the mean of its divisors is an integer number (408708000).

Almost surely, 2^28700794584 is an apocalyptic number.

28700794584 is a gapful number since it is divisible by the number (24) 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 28700794584, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52314624000).

28700794584 is an abundant number, since it is smaller than the sum of its proper divisors (75928453416).

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

28700794584 is a wasteful number, since it uses less digits than its factorization.

28700794584 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90875 (or 90865 counting only the distinct ones).

The product of its (nonzero) digits is 4515840, while the sum is 54.

The spelling of 28700794584 in words is "twenty-eight billion, seven hundred million, seven hundred ninety-four thousand, five hundred eighty-four".