999999796518 has 48 divisors (see below), whose sum is σ = 2185051826880. Its totient is φ = 330515450928.

The previous prime is 999999796501. The next prime is 999999796597. The reversal of 999999796518 is 815697999999.

999999796518 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 670821 + ... + 1565247.

It is an arithmetic number, because the mean of its divisors is an integer number (45521913060).

Almost surely, 2^999999796518 is an apocalyptic number.

999999796518 is an abundant number, since it is smaller than the sum of its proper divisors (1185052030362).

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

999999796518 is a wasteful number, since it uses less digits than its factorization.

999999796518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 894961 (or 894958 counting only the distinct ones).

The product of its digits is 8035387920, while the sum is 90.

The spelling of 999999796518 in words is "nine hundred ninety-nine billion, nine hundred ninety-nine million, seven hundred ninety-six thousand, five hundred eighteen".