5781128386523 has 16 divisors (see below), whose sum is σ = 6614875151616. Its totient is φ = 4949352888480.

The previous prime is 5781128386511. The next prime is 5781128386541. The reversal of 5781128386523 is 3256838211875.

It is not a de Polignac number, because 5781128386523 - 2¹⁰ = 5781128385499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5781128386573) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20230628 + ... + 20514398.

It is an arithmetic number, because the mean of its divisors is an integer number (413429696976).

Almost surely, 2^{5781128386523} is an apocalyptic number.

5781128386523 is a deficient number, since it is larger than the sum of its proper divisors (833746765093).

5781128386523 is a wasteful number, since it uses less digits than its factorization.

5781128386523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287234.

The product of its digits is 19353600, while the sum is 59.

The spelling of 5781128386523 in words is "five trillion, seven hundred eighty-one billion, one hundred twenty-eight million, three hundred eighty-six thousand, five hundred twenty-three".