9990934755 has 8 divisors (see below), whose sum is σ = 15985495632. Its totient is φ = 5328498528.

The previous prime is 9990934721. The next prime is 9990934763. The reversal of 9990934755 is 5574390999.

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

It is not a de Polignac number, because 9990934755 - 2¹³ = 9990926563 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 333031144 + ... + 333031173.

It is an arithmetic number, because the mean of its divisors is an integer number (1998186954).

Almost surely, 2^9990934755 is an apocalyptic number.

9990934755 is a deficient number, since it is larger than the sum of its proper divisors (5994560877).

9990934755 is a wasteful number, since it uses less digits than its factorization.

9990934755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666062325.

The product of its (nonzero) digits is 13778100, while the sum is 60.

The square root of 9990934755 is about 99954.6634980079. The cubic root of 9990934755 is about 2153.7834772687.

The spelling of 9990934755 in words is "nine billion, nine hundred ninety million, nine hundred thirty-four thousand, seven hundred fifty-five".