28693227744 has 36 divisors (see below), whose sum is σ = 81596367216. Its totient is φ = 9564409152.

The previous prime is 28693227727. The next prime is 28693227751. The reversal of 28693227744 is 44772239682.

28693227744 is a `hidden beast` number, since 286 + 93 + 2 + 277 + 4 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 49814344 + ... + 49814919.

It is an arithmetic number, because the mean of its divisors is an integer number (2266565756).

Almost surely, 2^28693227744 is an apocalyptic number.

28693227744 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

28693227744 is an abundant number, since it is smaller than the sum of its proper divisors (52903139472).

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

28693227744 is a wasteful number, since it uses less digits than its factorization.

28693227744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99629279 (or 99629268 counting only the distinct ones).

The product of its digits is 8128512, while the sum is 54.

The spelling of 28693227744 in words is "twenty-eight billion, six hundred ninety-three million, two hundred twenty-seven thousand, seven hundred forty-four".