52115284807721 has 8 divisors (see below), whose sum is σ = 52446432495744. Its totient is φ = 51784276412880.

The previous prime is 52115284807681. The next prime is 52115284807727. The reversal of 52115284807721 is 12770848251125.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 52115284807721 - 2²⁶ = 52115217698857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52115284807727) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 34072586 + ... + 35569251.

It is an arithmetic number, because the mean of its divisors is an integer number (6555804061968).

Almost surely, 2^{52115284807721} is an apocalyptic number.

It is an amenable number.

52115284807721 is a deficient number, since it is larger than the sum of its proper divisors (331147688023).

52115284807721 is a wasteful number, since it uses less digits than its factorization.

52115284807721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69646591.

The product of its (nonzero) digits is 2508800, while the sum is 53.

The spelling of 52115284807721 in words is "fifty-two trillion, one hundred fifteen billion, two hundred eighty-four million, eight hundred seven thousand, seven hundred twenty-one".