990505068934 has 8 divisors (see below), whose sum is σ = 1492245628560. Its totient is φ = 493089859416.

The previous prime is 990505068923. The next prime is 990505068941. The reversal of 990505068934 is 439860505099.

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

It is a super-2 number, since 2×990505068934² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1081336954 + ... + 1081337869.

It is an arithmetic number, because the mean of its divisors is an integer number (186530703570).

Almost surely, 2^990505068934 is an apocalyptic number.

990505068934 is a deficient number, since it is larger than the sum of its proper divisors (501740559626).

990505068934 is a wasteful number, since it uses less digits than its factorization.

990505068934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2162675054.

The product of its (nonzero) digits is 10497600, while the sum is 58.

The spelling of 990505068934 in words is "nine hundred ninety billion, five hundred five million, sixty-eight thousand, nine hundred thirty-four".