9799844780 has 48 divisors (see below), whose sum is σ = 22785670656. Its totient is φ = 3510386880.

The previous prime is 9799844771. The next prime is 9799844783. The reversal of 9799844780 is 874489979.

It is not an unprimeable number, because it can be changed into a prime (9799844783) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 317684 + ... + 347163.

It is an arithmetic number, because the mean of its divisors is an integer number (474701472).

Almost surely, 2^9799844780 is an apocalyptic number.

It is an amenable number.

9799844780 is an abundant number, since it is smaller than the sum of its proper divisors (12985825876).

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

9799844780 is a wasteful number, since it uses less digits than its factorization.

9799844780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 664934 (or 664932 counting only the distinct ones).

The product of its (nonzero) digits is 36578304, while the sum is 65.

The square root of 9799844780 is about 98994.1653836225. The cubic root of 9799844780 is about 2139.9636628762.

The spelling of 9799844780 in words is "nine billion, seven hundred ninety-nine million, eight hundred forty-four thousand, seven hundred eighty".