9809459830 has 16 divisors (see below), whose sum is σ = 17665665264. Its totient is φ = 3921864480.

The previous prime is 9809459813. The next prime is 9809459831. The reversal of 9809459830 is 389549089.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9809459831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218376 + ... + 259435.

It is an arithmetic number, because the mean of its divisors is an integer number (1104104079).

Almost surely, 2^9809459830 is an apocalyptic number.

9809459830 is a deficient number, since it is larger than the sum of its proper divisors (7856205434).

9809459830 is a wasteful number, since it uses less digits than its factorization.

9809459830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479871.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The square root of 9809459830 is about 99042.7171981868. The cubic root of 9809459830 is about 2140.6633042976.

The spelling of 9809459830 in words is "nine billion, eight hundred nine million, four hundred fifty-nine thousand, eight hundred thirty".