9913904830 has 32 divisors (see below), whose sum is σ = 18229860000. Its totient is φ = 3880705920.

The previous prime is 9913904779. The next prime is 9913904839. The reversal of 9913904830 is 384093199.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9913904839) 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, 78921 + ... + 161419.

It is an arithmetic number, because the mean of its divisors is an integer number (569683125).

Almost surely, 2^9913904830 is an apocalyptic number.

9913904830 is a deficient number, since it is larger than the sum of its proper divisors (8315955170).

9913904830 is a wasteful number, since it uses less digits than its factorization.

9913904830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82764.

The product of its (nonzero) digits is 209952, while the sum is 46.

The square root of 9913904830 is about 99568.5935925581. The cubic root of 9913904830 is about 2148.2339801030.

The spelling of 9913904830 in words is "nine billion, nine hundred thirteen million, nine hundred four thousand, eight hundred thirty".