990999793334 has 4 divisors (see below), whose sum is σ = 1486499690004. Its totient is φ = 495499896666.

The previous prime is 990999793291. The next prime is 990999793337. The reversal of 990999793334 is 433397999099.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×990999793334³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (990999793337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 247749948332 + ... + 247749948335.

It is an arithmetic number, because the mean of its divisors is an integer number (371624922501).

Almost surely, 2^990999793334 is an apocalyptic number.

990999793334 is a deficient number, since it is larger than the sum of its proper divisors (495499896670).

990999793334 is a wasteful number, since it uses less digits than its factorization.

990999793334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495499896669.

The product of its (nonzero) digits is 401769396, while the sum is 74.

The spelling of 990999793334 in words is "nine hundred ninety billion, nine hundred ninety-nine million, seven hundred ninety-three thousand, three hundred thirty-four".