142008349689 has 32 divisors (see below), whose sum is σ = 212869923840. Its totient is φ = 93559211136.

The previous prime is 142008349663. The next prime is 142008349727. The reversal of 142008349689 is 986943800241.

142008349689 is a `hidden beast` number, since 14 + 200 + 8 + 349 + 6 + 89 = 666.

142008349689 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 142008349689 - 2⁸ = 142008349433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142008344689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 738799 + ... + 910955.

It is an arithmetic number, because the mean of its divisors is an integer number (6652185120).

Almost surely, 2^142008349689 is an apocalyptic number.

It is an amenable number.

142008349689 is a deficient number, since it is larger than the sum of its proper divisors (70861574151).

142008349689 is a wasteful number, since it uses less digits than its factorization.

142008349689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172526 (or 172520 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 54.

The spelling of 142008349689 in words is "one hundred forty-two billion, eight million, three hundred forty-nine thousand, six hundred eighty-nine".