142170809384 has 64 divisors (see below), whose sum is σ = 270299904000. Its totient is φ = 70099271424.

The previous prime is 142170809381. The next prime is 142170809453. The reversal of 142170809384 is 483908071241.

It is not an unprimeable number, because it can be changed into a prime (142170809381) 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, 193957082 + ... + 193957814.

It is an arithmetic number, because the mean of its divisors is an integer number (4223436000).

Almost surely, 2^142170809384 is an apocalyptic number.

It is an amenable number.

142170809384 is a deficient number, since it is larger than the sum of its proper divisors (128129094616).

142170809384 is a wasteful number, since it uses less digits than its factorization.

142170809384 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762 (or 1758 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 142170809384 in words is "one hundred forty-two billion, one hundred seventy million, eight hundred nine thousand, three hundred eighty-four".