83191107208 has 32 divisors (see below), whose sum is σ = 170383901760. Its totient is φ = 37765190080.

The previous prime is 83191107169. The next prime is 83191107221. The reversal of 83191107208 is 80270119138.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 543460 + ... + 679507.

It is an arithmetic number, because the mean of its divisors is an integer number (5324496930).

Almost surely, 2^83191107208 is an apocalyptic number.

83191107208 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

83191107208 is an abundant number, since it is smaller than the sum of its proper divisors (87192794552).

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

83191107208 is a wasteful number, since it uses less digits than its factorization.

83191107208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1223757 (or 1223753 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 40.

The spelling of 83191107208 in words is "eighty-three billion, one hundred ninety-one million, one hundred seven thousand, two hundred eight".