2142446667779 has 8 divisors (see below), whose sum is σ = 2372098346688. Its totient is φ = 1918608955560.

The previous prime is 2142446667769. The next prime is 2142446667791. The reversal of 2142446667779 is 9777666442412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2142446667779 - 2⁴ = 2142446667763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2142446667719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1453490897 + ... + 1453492370.

It is an arithmetic number, because the mean of its divisors is an integer number (296512293336).

Almost surely, 2^{2142446667779} is an apocalyptic number.

2142446667779 is a deficient number, since it is larger than the sum of its proper divisors (229651678909).

2142446667779 is a wasteful number, since it uses less digits than its factorization.

2142446667779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2906983345.

The product of its digits is 170698752, while the sum is 65.

The spelling of 2142446667779 in words is "two trillion, one hundred forty-two billion, four hundred forty-six million, six hundred sixty-seven thousand, seven hundred seventy-nine".