28510011730745 has 8 divisors (see below), whose sum is σ = 34345134755784. Its totient is φ = 22719262265344.

The previous prime is 28510011730721. The next prime is 28510011730751. The reversal of 28510011730745 is 54703711001582.

It can be written as a sum of positive squares in 4 ways, for example, as 17390367870976 + 11119643859769 = 4170176^2 + 3334613^2 .

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 28510011730745 - 2⁸ = 28510011730489 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28510011730696 and 28510011730705.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11093388494 + ... + 11093391063.

It is an arithmetic number, because the mean of its divisors is an integer number (4293141844473).

Almost surely, 2^{28510011730745} is an apocalyptic number.

It is an amenable number.

28510011730745 is a deficient number, since it is larger than the sum of its proper divisors (5835123025039).

28510011730745 is a wasteful number, since it uses less digits than its factorization.

28510011730745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22186779819.

The product of its (nonzero) digits is 235200, while the sum is 44.

The spelling of 28510011730745 in words is "twenty-eight trillion, five hundred ten billion, eleven million, seven hundred thirty thousand, seven hundred forty-five".