9866837742 has 32 divisors (see below), whose sum is σ = 20082418560. Its totient is φ = 3230901600.

The previous prime is 9866837711. The next prime is 9866837797. The reversal of 9866837742 is 2477386689.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 529992 + ... + 548292.

It is an arithmetic number, because the mean of its divisors is an integer number (627575580).

Almost surely, 2^9866837742 is an apocalyptic number.

9866837742 is an abundant number, since it is smaller than the sum of its proper divisors (10215580818).

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

9866837742 is a wasteful number, since it uses less digits than its factorization.

9866837742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19888.

The product of its digits is 24385536, while the sum is 60.

The square root of 9866837742 is about 99331.9573047869. The cubic root of 9866837742 is about 2144.8289459936.

The spelling of 9866837742 in words is "nine billion, eight hundred sixty-six million, eight hundred thirty-seven thousand, seven hundred forty-two".