9854838142 has 8 divisors (see below), whose sum is σ = 14782685256. Its totient is φ = 4927276392.

The previous prime is 9854838121. The next prime is 9854838143. The reversal of 9854838142 is 2418384589.

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

It is a self number, because there is not a number n which added to its sum of digits gives 9854838142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9854838143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 75193 + ... + 159259.

It is an arithmetic number, because the mean of its divisors is an integer number (1847835657).

Almost surely, 2^9854838142 is an apocalyptic number.

9854838142 is a deficient number, since it is larger than the sum of its proper divisors (4927847114).

9854838142 is a wasteful number, since it uses less digits than its factorization.

9854838142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142682.

The product of its digits is 2211840, while the sum is 52.

The square root of 9854838142 is about 99271.5374213576. The cubic root of 9854838142 is about 2143.9591120922.

The spelling of 9854838142 in words is "nine billion, eight hundred fifty-four million, eight hundred thirty-eight thousand, one hundred forty-two".