52717665881851 has 4 divisors (see below), whose sum is σ = 53712338823072. Its totient is φ = 51722992940632.

The previous prime is 52717665881849. The next prime is 52717665881861. The reversal of 52717665881851 is 15818856671725.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 52717665881851 - 2¹ = 52717665881849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52717665881861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 497336470531 + ... + 497336470636.

It is an arithmetic number, because the mean of its divisors is an integer number (13428084705768).

Almost surely, 2^{52717665881851} is an apocalyptic number.

52717665881851 is a deficient number, since it is larger than the sum of its proper divisors (994672941221).

52717665881851 is an equidigital number, since it uses as much as digits as its factorization.

52717665881851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 994672941220.

The product of its digits is 225792000, while the sum is 70.

The spelling of 52717665881851 in words is "fifty-two trillion, seven hundred seventeen billion, six hundred sixty-five million, eight hundred eighty-one thousand, eight hundred fifty-one".