9979473243 has 32 divisors (see below), whose sum is σ = 14379287040. Its totient is φ = 6137429760.

The previous prime is 9979473209. The next prime is 9979473247. The reversal of 9979473243 is 3423749799.

9979473243 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9979473243 - 2⁹ = 9979472731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (9979473247) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2244903 + ... + 2249343.

It is an arithmetic number, because the mean of its divisors is an integer number (449352720).

Almost surely, 2^9979473243 is an apocalyptic number.

9979473243 is a deficient number, since it is larger than the sum of its proper divisors (4399813797).

9979473243 is a wasteful number, since it uses less digits than its factorization.

9979473243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5619.

The product of its digits is 10287648, while the sum is 57.

The square root of 9979473243 is about 99897.3134924058. The cubic root of 9979473243 is about 2152.9595616725.

The spelling of 9979473243 in words is "nine billion, nine hundred seventy-nine million, four hundred seventy-three thousand, two hundred forty-three".