791167669812 has 144 divisors (see below), whose sum is σ = 2164422000832. Its totient is φ = 242231109120.

The previous prime is 791167669763. The next prime is 791167669837. The reversal of 791167669812 is 218966761197.

It is a super-2 number, since 2×791167669812² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 791167669812.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 84730008 + ... + 84739344.

Almost surely, 2^791167669812 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 791167669812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1082211000416).

791167669812 is an abundant number, since it is smaller than the sum of its proper divisors (1373254331020).

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

791167669812 is a wasteful number, since it uses less digits than its factorization.

791167669812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10238 (or 10233 counting only the distinct ones).

The product of its digits is 13716864, while the sum is 63.

The spelling of 791167669812 in words is "seven hundred ninety-one billion, one hundred sixty-seven million, six hundred sixty-nine thousand, eight hundred twelve".