142943722865 has 32 divisors (see below), whose sum is σ = 186099984000. Its totient is φ = 105045050880.

The previous prime is 142943722861. The next prime is 142943722871. The reversal of 142943722865 is 568227349241.

It is not a de Polignac number, because 142943722865 - 2² = 142943722861 is a prime.

It is a Smith number, since the sum of its digits (53) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (142943722861) 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, 522311 + ... + 747459.

It is an arithmetic number, because the mean of its divisors is an integer number (5815624500).

Almost surely, 2^142943722865 is an apocalyptic number.

It is an amenable number.

142943722865 is a deficient number, since it is larger than the sum of its proper divisors (43156261135).

142943722865 is a wasteful number, since it uses less digits than its factorization.

142943722865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225377.

The product of its digits is 5806080, while the sum is 53.

The spelling of 142943722865 in words is "one hundred forty-two billion, nine hundred forty-three million, seven hundred twenty-two thousand, eight hundred sixty-five".