142173216074721 has 16 divisors (see below), whose sum is σ = 208489691660544. Its totient is φ = 85629694786944.

The previous prime is 142173216074717. The next prime is 142173216074723. The reversal of 142173216074721 is 127470612371241.

It is not a de Polignac number, because 142173216074721 - 2² = 142173216074717 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142173216074723) 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 15 ways as a sum of consecutive naturals, for example, 38781562836 + ... + 38781566501.

It is an arithmetic number, because the mean of its divisors is an integer number (13030605728784).

Almost surely, 2^{142173216074721} is an apocalyptic number.

It is an amenable number.

142173216074721 is a deficient number, since it is larger than the sum of its proper divisors (66316475585823).

142173216074721 is a wasteful number, since it uses less digits than its factorization.

142173216074721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77563129400.

The product of its (nonzero) digits is 790272, while the sum is 48.

The spelling of 142173216074721 in words is "one hundred forty-two trillion, one hundred seventy-three billion, two hundred sixteen million, seventy-four thousand, seven hundred twenty-one".