9389916913 has 8 divisors (see below), whose sum is σ = 10144122408. Its totient is φ = 8640269184.

The previous prime is 9389916889. The next prime is 9389916929. The reversal of 9389916913 is 3196199839.

It can be written as a sum of positive squares in 4 ways, for example, as 679801329 + 8710115584 = 26073^2 + 93328^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 9389916913 - 2⁵ = 9389916881 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9389916953) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1135156 + ... + 1143397.

It is an arithmetic number, because the mean of its divisors is an integer number (1268015301).

Almost surely, 2^9389916913 is an apocalyptic number.

It is an amenable number.

9389916913 is a deficient number, since it is larger than the sum of its proper divisors (754205495).

9389916913 is a wasteful number, since it uses less digits than its factorization.

9389916913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2278883.

The product of its digits is 2834352, while the sum is 58.

The square root of 9389916913 is about 96901.5836454699. The cubic root of 9389916913 is about 2109.6994183356.

The spelling of 9389916913 in words is "nine billion, three hundred eighty-nine million, nine hundred sixteen thousand, nine hundred thirteen".