52688187991 has 4 divisors (see below), whose sum is σ = 52692913152. Its totient is φ = 52683462832.

The previous prime is 52688187973. The next prime is 52688188061. The reversal of 52688187991 is 19978188625.

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 52688187991 - 2¹³ = 52688179799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52688187691) 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 3 ways as a sum of consecutive naturals, for example, 2345815 + ... + 2368168.

It is an arithmetic number, because the mean of its divisors is an integer number (13173228288).

Almost surely, 2^52688187991 is an apocalyptic number.

52688187991 is a deficient number, since it is larger than the sum of its proper divisors (4725161).

52688187991 is a wasteful number, since it uses less digits than its factorization.

52688187991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4725160.

The product of its digits is 17418240, while the sum is 64.

The spelling of 52688187991 in words is "fifty-two billion, six hundred eighty-eight million, one hundred eighty-seven thousand, nine hundred ninety-one".