999942902318 has 8 divisors (see below), whose sum is σ = 1505214405048. Its totient is φ = 498204767304.

The previous prime is 999942902317. The next prime is 999942902323. The reversal of 999942902318 is 813209249999.

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

It is a super-2 number, since 2×999942902318² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (999942902311) 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, 883341221 + ... + 883342352.

It is an arithmetic number, because the mean of its divisors is an integer number (188151800631).

Almost surely, 2^999942902318 is an apocalyptic number.

999942902318 is a deficient number, since it is larger than the sum of its proper divisors (505271502730).

999942902318 is a wasteful number, since it uses less digits than its factorization.

999942902318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766683858.

The product of its (nonzero) digits is 22674816, while the sum is 65.

The spelling of 999942902318 in words is "nine hundred ninety-nine billion, nine hundred forty-two million, nine hundred two thousand, three hundred eighteen".