810852732725 has 24 divisors (see below), whose sum is σ = 1153672285248. Its totient is φ = 553798080000.

The previous prime is 810852732721. The next prime is 810852732757. The reversal of 810852732725 is 527237258018.

It is not a de Polignac number, because 810852732725 - 2² = 810852732721 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (810852732721) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 9186044 + ... + 9273893.

It is an arithmetic number, because the mean of its divisors is an integer number (48069678552).

Almost surely, 2^810852732725 is an apocalyptic number.

It is an amenable number.

810852732725 is a deficient number, since it is larger than the sum of its proper divisors (342819552523).

810852732725 is a wasteful number, since it uses less digits than its factorization.

810852732725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18460205 (or 18460200 counting only the distinct ones).

The product of its (nonzero) digits is 1881600, while the sum is 50.

The spelling of 810852732725 in words is "eight hundred ten billion, eight hundred fifty-two million, seven hundred thirty-two thousand, seven hundred twenty-five".