28510011730747 has 4 divisors (see below), whose sum is σ = 28510099686720. Its totient is φ = 28509923774776.

The previous prime is 28510011730721. The next prime is 28510011730751. The reversal of 28510011730747 is 74703711001582.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 28510011730747 - 2⁷ = 28510011730619 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28510011730697 and 28510011730706.

It is not an unprimeable number, because it can be changed into a prime (28510011730547) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43489972 + ... + 44140657.

It is an arithmetic number, because the mean of its divisors is an integer number (7127524921680).

Almost surely, 2^{28510011730747} is an apocalyptic number.

28510011730747 is a deficient number, since it is larger than the sum of its proper divisors (87955973).

28510011730747 is an equidigital number, since it uses as much as digits as its factorization.

28510011730747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87955972.

The product of its (nonzero) digits is 329280, while the sum is 46.

The spelling of 28510011730747 in words is "twenty-eight trillion, five hundred ten billion, eleven million, seven hundred thirty thousand, seven hundred forty-seven".