9990992958 has 8 divisors (see below), whose sum is σ = 19981985928. Its totient is φ = 3330330984.

The previous prime is 9990992911. The next prime is 9990992959. The reversal of 9990992958 is 8592990999.

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

9990992958 is an admirable number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9990992892 and 9990992901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9990992959) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832582741 + ... + 832582752.

It is an arithmetic number, because the mean of its divisors is an integer number (2497748241).

Almost surely, 2^9990992958 is an apocalyptic number.

9990992958 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9990992958 is a wasteful number, since it uses less digits than its factorization.

9990992958 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1665165498.

The product of its (nonzero) digits is 42515280, while the sum is 69.

The square root of 9990992958 is about 99954.9546445798. The cubic root of 9990992958 is about 2153.7876596073.

The spelling of 9990992958 in words is "nine billion, nine hundred ninety million, nine hundred ninety-two thousand, nine hundred fifty-eight".