142918866673 has 4 divisors (see below), whose sum is σ = 155911490928. Its totient is φ = 129926242420.

The previous prime is 142918866661. The next prime is 142918866683. The reversal of 142918866673 is 376668819241.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 142918866673 - 2⁹ = 142918866161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (142918866613) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6496312111 + ... + 6496312132.

It is an arithmetic number, because the mean of its divisors is an integer number (38977872732).

Almost surely, 2^142918866673 is an apocalyptic number.

It is an amenable number.

142918866673 is a deficient number, since it is larger than the sum of its proper divisors (12992624255).

142918866673 is a wasteful number, since it uses less digits than its factorization.

142918866673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12992624254.

The product of its digits is 20901888, while the sum is 61.

The spelling of 142918866673 in words is "one hundred forty-two billion, nine hundred eighteen million, eight hundred sixty-six thousand, six hundred seventy-three".