52040871765 has 32 divisors (see below), whose sum is σ = 93631789440. Its totient is φ = 27420726528.

The previous prime is 52040871689. The next prime is 52040871781. The reversal of 52040871765 is 56717804025.

52040871765 is a `hidden beast` number, since 520 + 40 + 87 + 1 + 7 + 6 + 5 = 666.

It is not a de Polignac number, because 52040871765 - 2¹⁰ = 52040870741 is a prime.

It is a super-2 number, since 2×52040871765² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 52040871765.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2311012 + ... + 2333421.

It is an arithmetic number, because the mean of its divisors is an integer number (2925993420).

Almost surely, 2^52040871765 is an apocalyptic number.

It is an amenable number.

52040871765 is a deficient number, since it is larger than the sum of its proper divisors (41590917675).

52040871765 is a wasteful number, since it uses less digits than its factorization.

52040871765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4644530 (or 4644524 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 45.

The spelling of 52040871765 in words is "fifty-two billion, forty million, eight hundred seventy-one thousand, seven hundred sixty-five".