142173781992 has 192 divisors, whose sum is σ = 434011968000. Its totient is φ = 41654476800.

The previous prime is 142173781973. The next prime is 142173782063. The reversal of 142173781992 is 299187371241.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 36555984 + ... + 36559872.

It is an arithmetic number, because the mean of its divisors is an integer number (2260479000).

Almost surely, 2^142173781992 is an apocalyptic number.

142173781992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142173781992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217005984000).

142173781992 is an abundant number, since it is smaller than the sum of its proper divisors (291838186008).

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

142173781992 is a wasteful number, since it uses less digits than its factorization.

142173781992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5432 (or 5425 counting only the distinct ones).

The product of its digits is 1524096, while the sum is 54.

The spelling of 142173781992 in words is "one hundred forty-two billion, one hundred seventy-three million, seven hundred eighty-one thousand, nine hundred ninety-two".