9802561867 has 6 divisors (see below), whose sum is σ = 11402980188. Its totient is φ = 8402195844.

The previous prime is 9802561729. The next prime is 9802561877. The reversal of 9802561867 is 7681652089.

It is not a de Polignac number, because 9802561867 - 2¹⁹ = 9802037579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9802561877) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100026093 + ... + 100026190.

It is an arithmetic number, because the mean of its divisors is an integer number (1900496698).

Almost surely, 2^9802561867 is an apocalyptic number.

9802561867 is a deficient number, since it is larger than the sum of its proper divisors (1600418321).

9802561867 is a wasteful number, since it uses less digits than its factorization.

9802561867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200052297 (or 200052290 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 52.

The square root of 9802561867 is about 99007.8879029343. The cubic root of 9802561867 is about 2140.1614187350.

The spelling of 9802561867 in words is "nine billion, eight hundred two million, five hundred sixty-one thousand, eight hundred sixty-seven".