28542785976 has 96 divisors (see below), whose sum is σ = 79964866800. Its totient is φ = 9190402560.

The previous prime is 28542785969. The next prime is 28542785989. The reversal of 28542785976 is 67958724582.

28542785976 is a `hidden beast` number, since 2 + 8 + 542 + 7 + 85 + 9 + 7 + 6 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 331756 + ... + 408836.

Almost surely, 2^28542785976 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28542785976, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39982433400).

28542785976 is an abundant number, since it is smaller than the sum of its proper divisors (51422080824).

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

28542785976 is a wasteful number, since it uses less digits than its factorization.

28542785976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77269 (or 77262 counting only the distinct ones).

The product of its digits is 67737600, while the sum is 63.

The spelling of 28542785976 in words is "twenty-eight billion, five hundred forty-two million, seven hundred eighty-five thousand, nine hundred seventy-six".