816968089608 has 32 divisors (see below), whose sum is σ = 2228094790560. Its totient is φ = 247566087680.

The previous prime is 816968089603. The next prime is 816968089681. The reversal of 816968089608 is 806980869618.

It is not an unprimeable number, because it can be changed into a prime (816968089603) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1547287785 + ... + 1547288312.

It is an arithmetic number, because the mean of its divisors is an integer number (69627962205).

Almost surely, 2^816968089608 is an apocalyptic number.

816968089608 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

816968089608 is an abundant number, since it is smaller than the sum of its proper divisors (1411126700952).

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

816968089608 is a wasteful number, since it uses less digits than its factorization.

816968089608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094576117 (or 3094576113 counting only the distinct ones).

The product of its (nonzero) digits is 71663616, while the sum is 69.

The spelling of 816968089608 in words is "eight hundred sixteen billion, nine hundred sixty-eight million, eighty-nine thousand, six hundred eight".