28107674784 has 288 divisors, whose sum is σ = 96256036800. Its totient is φ = 7955781120.

The previous prime is 28107674783. The next prime is 28107674807. The reversal of 28107674784 is 48747670182.

28107674784 is a `hidden beast` number, since 2 + 8 + 107 + 67 + 478 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (288).

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 28107674784.

It is not an unprimeable number, because it can be changed into a prime (28107674783) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4611579 + ... + 4617669.

It is an arithmetic number, because the mean of its divisors is an integer number (334222350).

Almost surely, 2^28107674784 is an apocalyptic number.

28107674784 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 28107674784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (48128018400).

28107674784 is an abundant number, since it is smaller than the sum of its proper divisors (68148362016).

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

28107674784 is a wasteful number, since it uses less digits than its factorization.

28107674784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233 (or 6212 counting only the distinct ones).

The product of its (nonzero) digits is 4214784, while the sum is 54.

The spelling of 28107674784 in words is "twenty-eight billion, one hundred seven million, six hundred seventy-four thousand, seven hundred eighty-four".