28747078055 has 8 divisors (see below), whose sum is σ = 34519701312. Its totient is φ = 22982190688.

The previous prime is 28747078043. The next prime is 28747078079. The reversal of 28747078055 is 55087074782.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 28747078055 - 2³⁰ = 27673336231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28747077988 and 28747078006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925792 + ... + 1940661.

It is an arithmetic number, because the mean of its divisors is an integer number (4314962664).

Almost surely, 2^28747078055 is an apocalyptic number.

28747078055 is a deficient number, since it is larger than the sum of its proper divisors (5772623257).

28747078055 is a wasteful number, since it uses less digits than its factorization.

28747078055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3867945.

The product of its (nonzero) digits is 4390400, while the sum is 53.

The spelling of 28747078055 in words is "twenty-eight billion, seven hundred forty-seven million, seventy-eight thousand, fifty-five".