142999984061688 has 128 divisors (see below), whose sum is σ = 391978196366400. Its totient is φ = 43207746195456.

The previous prime is 142999984061687. The next prime is 142999984061743. The reversal of 142999984061688 is 886160489999241.

It is a self number, because there is not a number n which added to its sum of digits gives 142999984061688.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142999984061687) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8492895 + ... + 18924302.

Almost surely, 2^{142999984061688} is an apocalyptic number.

It is an amenable number.

142999984061688 is an abundant number, since it is smaller than the sum of its proper divisors (248978212304712).

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

142999984061688 is a wasteful number, since it uses less digits than its factorization.

142999984061688 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27417521 (or 27417517 counting only the distinct ones).

The product of its (nonzero) digits is 3869835264, while the sum is 84.

The spelling of 142999984061688 in words is "one hundred forty-two trillion, nine hundred ninety-nine billion, nine hundred eighty-four million, sixty-one thousand, six hundred eighty-eight".