28047747895 has 8 divisors (see below), whose sum is σ = 33971852304. Its totient is φ = 22228495104.

The previous prime is 28047747887. The next prime is 28047747911. The reversal of 28047747895 is 59874774082.

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 28047747895 - 2³ = 28047747887 is a prime.

It is a Duffinian number.

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, 26212314 + ... + 26213383.

It is an arithmetic number, because the mean of its divisors is an integer number (4246481538).

Almost surely, 2^28047747895 is an apocalyptic number.

28047747895 is a deficient number, since it is larger than the sum of its proper divisors (5924104409).

28047747895 is a wasteful number, since it uses less digits than its factorization.

28047747895 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52425809.

The product of its (nonzero) digits is 31610880, while the sum is 61.

The spelling of 28047747895 in words is "twenty-eight billion, forty-seven million, seven hundred forty-seven thousand, eight hundred ninety-five".