142770209979 has 16 divisors (see below), whose sum is σ = 192005694720. Its totient is φ = 94360442400.

The previous prime is 142770209941. The next prime is 142770210047. The reversal of 142770209979 is 979902077241.

It is not a de Polignac number, because 142770209979 - 2⁹ = 142770209467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (142770209909) 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, 186072 + ... + 565829.

It is an arithmetic number, because the mean of its divisors is an integer number (12000355920).

Almost surely, 2^142770209979 is an apocalyptic number.

142770209979 is a deficient number, since it is larger than the sum of its proper divisors (49235484741).

142770209979 is a wasteful number, since it uses less digits than its factorization.

142770209979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752450.

The product of its (nonzero) digits is 4000752, while the sum is 57.

The spelling of 142770209979 in words is "one hundred forty-two billion, seven hundred seventy million, two hundred nine thousand, nine hundred seventy-nine".