9850989723642 has 40 divisors (see below), whose sum is σ = 22074052651200. Its totient is φ = 3283583112936.

The previous prime is 9850989723587. The next prime is 9850989723671. The reversal of 9850989723642 is 2463279890589.

9850989723642 is a `hidden beast` number, since 9 + 8 + 509 + 8 + 9 + 72 + 3 + 6 + 42 = 666.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6112159 + ... + 7553837.

It is an arithmetic number, because the mean of its divisors is an integer number (551851316280).

Almost surely, 2^{9850989723642} is an apocalyptic number.

9850989723642 is an abundant number, since it is smaller than the sum of its proper divisors (12223062927558).

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

9850989723642 is a wasteful number, since it uses less digits than its factorization.

9850989723642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1483872 (or 1483863 counting only the distinct ones).

The product of its (nonzero) digits is 470292480, while the sum is 72.

The spelling of 9850989723642 in words is "nine trillion, eight hundred fifty billion, nine hundred eighty-nine million, seven hundred twenty-three thousand, six hundred forty-two".