652142071729 has 6 divisors (see below), whose sum is σ = 692759917334. Its totient is φ = 613780773120.

The previous prime is 652142071699. The next prime is 652142071747. The reversal of 652142071729 is 927170241256.

It can be written as a sum of positive squares in 3 ways, for example, as 91930240000 + 560211831729 = 303200^2 + 748473^2 .

It is not a de Polignac number, because 652142071729 - 2⁷ = 652142071601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (652142071769) 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 5 ways as a sum of consecutive naturals, for example, 1128273192 + ... + 1128273769.

Almost surely, 2^652142071729 is an apocalyptic number.

It is an amenable number.

652142071729 is a deficient number, since it is larger than the sum of its proper divisors (40617845605).

652142071729 is a wasteful number, since it uses less digits than its factorization.

652142071729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2256546995 (or 2256546978 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 652142071729 in words is "six hundred fifty-two billion, one hundred forty-two million, seventy-one thousand, seven hundred twenty-nine".