142656237729 has 6 divisors (see below), whose sum is σ = 206059010066. Its totient is φ = 95104158480.

The previous prime is 142656237721. The next prime is 142656237739. The reversal of 142656237729 is 927732656241.

142656237729 is a `hidden beast` number, since 1 + 4 + 2 + 6 + 5 + 623 + 7 + 7 + 2 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 72827118225 + 69829119504 = 269865^2 + 264252^2 .

It is not a de Polignac number, because 142656237729 - 2³ = 142656237721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142656237721) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7925346532 + ... + 7925346549.

Almost surely, 2^142656237729 is an apocalyptic number.

It is an amenable number.

142656237729 is a deficient number, since it is larger than the sum of its proper divisors (63402772337).

142656237729 is a wasteful number, since it uses less digits than its factorization.

142656237729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15850693087 (or 15850693084 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 54.

The spelling of 142656237729 in words is "one hundred forty-two billion, six hundred fifty-six million, two hundred thirty-seven thousand, seven hundred twenty-nine".