142004718989 has 16 divisors (see below), whose sum is σ = 163223888256. Its totient is φ = 121019572800.

The previous prime is 142004718941. The next prime is 142004719063. The reversal of 142004718989 is 989817400241.

It is a de Polignac number, because none of the positive numbers 2^k-142004718989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 142004718989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142004718689) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2077619 + ... + 2144879.

It is an arithmetic number, because the mean of its divisors is an integer number (10201493016).

Almost surely, 2^142004718989 is an apocalyptic number.

It is an amenable number.

142004718989 is a deficient number, since it is larger than the sum of its proper divisors (21219169267).

142004718989 is a wasteful number, since it uses less digits than its factorization.

142004718989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68996.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 142004718989 in words is "one hundred forty-two billion, four million, seven hundred eighteen thousand, nine hundred eighty-nine".