817528458513 has 16 divisors (see below), whose sum is σ = 1187076764160. Its totient is φ = 497441687424.

The previous prime is 817528458503. The next prime is 817528458517. The reversal of 817528458513 is 315854825718.

It is not a de Polignac number, because 817528458513 - 2¹⁶ = 817528392977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (817528458517) 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, 117762081 + ... + 117769022.

It is an arithmetic number, because the mean of its divisors is an integer number (74192297760).

Almost surely, 2^817528458513 is an apocalyptic number.

It is an amenable number.

817528458513 is a deficient number, since it is larger than the sum of its proper divisors (369548305647).

817528458513 is a wasteful number, since it uses less digits than its factorization.

817528458513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235531208.

The product of its digits is 10752000, while the sum is 57.

The spelling of 817528458513 in words is "eight hundred seventeen billion, five hundred twenty-eight million, four hundred fifty-eight thousand, five hundred thirteen".