142190899218 has 24 divisors (see below), whose sum is σ = 308284232256. Its totient is φ = 47365589400.

The previous prime is 142190899183. The next prime is 142190899229. The reversal of 142190899218 is 812998091241.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2586798 + ... + 2641193.

It is an arithmetic number, because the mean of its divisors is an integer number (12845176344).

Almost surely, 2^142190899218 is an apocalyptic number.

142190899218 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

142190899218 is an abundant number, since it is smaller than the sum of its proper divisors (166093333038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

142190899218 is a wasteful number, since it uses less digits than its factorization.

142190899218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5229510 (or 5229507 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 54.

The spelling of 142190899218 in words is "one hundred forty-two billion, one hundred ninety million, eight hundred ninety-nine thousand, two hundred eighteen".