142539068772 has 36 divisors (see below), whose sum is σ = 360351199936. Its totient is φ = 47507206320.

The previous prime is 142539068767. The next prime is 142539068779. The reversal of 142539068772 is 277860935241.

It is a happy number.

142539068772 is a `hidden beast` number, since 1 + 42 + 539 + 0 + 68 + 7 + 7 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×142539068772² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (142539068779) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60993 + ... + 537399.

It is a 1-persistent number, because it is pandigital, but 2⋅142539068772 = 285078137544 is not.

Almost surely, 2^142539068772 is an apocalyptic number.

142539068772 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

142539068772 is an abundant number, since it is smaller than the sum of its proper divisors (217812131164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142539068772 is a wasteful number, since it uses less digits than its factorization.

142539068772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 484728 (or 484723 counting only the distinct ones).

The product of its (nonzero) digits is 5080320, while the sum is 54.

The spelling of 142539068772 in words is "one hundred forty-two billion, five hundred thirty-nine million, sixty-eight thousand, seven hundred seventy-two".