9905487311 has 8 divisors (see below), whose sum is σ = 10230639120. Its totient is φ = 9585456192.

The previous prime is 9905487289. The next prime is 9905487313. The reversal of 9905487311 is 1137845099.

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

It is a de Polignac number, because none of the positive numbers 2^k-9905487311 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9905487313) 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, 1276241 + ... + 1283978.

It is an arithmetic number, because the mean of its divisors is an integer number (1278829890).

Almost surely, 2^9905487311 is an apocalyptic number.

9905487311 is a deficient number, since it is larger than the sum of its proper divisors (325151809).

9905487311 is a wasteful number, since it uses less digits than its factorization.

9905487311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560345.

The product of its (nonzero) digits is 272160, while the sum is 47.

The square root of 9905487311 is about 99526.3146660219. The cubic root of 9905487311 is about 2147.6258133959.

The spelling of 9905487311 in words is "nine billion, nine hundred five million, four hundred eighty-seven thousand, three hundred eleven".