28797492528 has 120 divisors (see below), whose sum is σ = 92385602816. Its totient is φ = 8202902400.

The previous prime is 28797492523. The next prime is 28797492541. The reversal of 28797492528 is 82529479782.

28797492528 is a `hidden beast` number, since 2 + 8 + 7 + 97 + 492 + 52 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (28797492523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290493 + ... + 376803.

Almost surely, 2^28797492528 is an apocalyptic number.

28797492528 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 28797492528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46192801408).

28797492528 is an abundant number, since it is smaller than the sum of its proper divisors (63588110288).

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

28797492528 is a wasteful number, since it uses less digits than its factorization.

28797492528 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86663 (or 86654 counting only the distinct ones).

The product of its digits is 40642560, while the sum is 63.

The spelling of 28797492528 in words is "twenty-eight billion, seven hundred ninety-seven million, four hundred ninety-two thousand, five hundred twenty-eight".