28092068784 has 400 divisors, whose sum is σ = 93029601280. Its totient is φ = 8112545280.

The previous prime is 28092068779. The next prime is 28092068801. The reversal of 28092068784 is 48786029082.

28092068784 is a `hidden beast` number, since 280 + 9 + 206 + 87 + 84 = 666.

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 28092068784.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 40653879 + ... + 40654569.

Almost surely, 2^28092068784 is an apocalyptic number.

28092068784 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 28092068784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46514800640).

28092068784 is an abundant number, since it is smaller than the sum of its proper divisors (64937532496).

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

28092068784 is a wasteful number, since it uses less digits than its factorization.

28092068784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870 (or 855 counting only the distinct ones).

The product of its (nonzero) digits is 3096576, while the sum is 54.

The spelling of 28092068784 in words is "twenty-eight billion, ninety-two million, sixty-eight thousand, seven hundred eighty-four".