9800973855 has 24 divisors (see below), whose sum is σ = 17308893888. Its totient is φ = 5128558656.

The previous prime is 9800973821. The next prime is 9800973869. The reversal of 9800973855 is 5583790089.

It is not a de Polignac number, because 9800973855 - 2⁷ = 9800973727 is a prime.

It is a super-2 number, since 2×9800973855² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2052327 + ... + 2057096.

It is an arithmetic number, because the mean of its divisors is an integer number (721203912).

Almost surely, 2^9800973855 is an apocalyptic number.

9800973855 is a deficient number, since it is larger than the sum of its proper divisors (7507920033).

9800973855 is a wasteful number, since it uses less digits than its factorization.

9800973855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4109487 (or 4109484 counting only the distinct ones).

The product of its (nonzero) digits is 2721600, while the sum is 54.

The square root of 9800973855 is about 98999.8679544574. The cubic root of 9800973855 is about 2140.0458439971.

The spelling of 9800973855 in words is "nine billion, eight hundred million, nine hundred seventy-three thousand, eight hundred fifty-five".