8391195516 has 96 divisors (see below), whose sum is σ = 22143082752. Its totient is φ = 2450787840.

The previous prime is 8391195499. The next prime is 8391195517. The reversal of 8391195516 is 6155911938.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8391195517) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 514560 + ... + 530616.

It is an arithmetic number, because the mean of its divisors is an integer number (230657112).

Almost surely, 2^8391195516 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 8391195516, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11071541376).

8391195516 is an abundant number, since it is smaller than the sum of its proper divisors (13751887236).

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

8391195516 is a wasteful number, since it uses less digits than its factorization.

8391195516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16219 (or 16217 counting only the distinct ones).

The product of its digits is 291600, while the sum is 48.

The square root of 8391195516 is about 91603.4689081150. The cubic root of 8391195516 is about 2032.0822395131.

The spelling of 8391195516 in words is "eight billion, three hundred ninety-one million, one hundred ninety-five thousand, five hundred sixteen".