68532552169 has 4 divisors (see below), whose sum is σ = 70126332496. Its totient is φ = 66938771844.

The previous prime is 68532552157. The next prime is 68532552173. The reversal of 68532552169 is 96125523586.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68532552169 - 2⁷ = 68532552041 is a prime.

It is a super-2 number, since 2×68532552169² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68532592169) 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 3 ways as a sum of consecutive naturals, for example, 796890099 + ... + 796890184.

It is an arithmetic number, because the mean of its divisors is an integer number (17531583124).

Almost surely, 2^68532552169 is an apocalyptic number.

It is an amenable number.

68532552169 is a deficient number, since it is larger than the sum of its proper divisors (1593780327).

68532552169 is a wasteful number, since it uses less digits than its factorization.

68532552169 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1593780326.

The product of its digits is 3888000, while the sum is 52.

The spelling of 68532552169 in words is "sixty-eight billion, five hundred thirty-two million, five hundred fifty-two thousand, one hundred sixty-nine".