5191191168 has 256 divisors, whose sum is σ = 15041980800. Its totient is φ = 1582350336.

The previous prime is 5191191133. The next prime is 5191191209. The reversal of 5191191168 is 8611911915.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17717230 + ... + 17717522.

Almost surely, 2^5191191168 is an apocalyptic number.

5191191168 is a gapful number since it is divisible by the number (58) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5191191168, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7520990400).

5191191168 is an abundant number, since it is smaller than the sum of its proper divisors (9850789632).

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

5191191168 is a wasteful number, since it uses less digits than its factorization.

5191191168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419 (or 407 counting only the distinct ones).

The product of its digits is 19440, while the sum is 42.

The square root of 5191191168 is about 72049.9213601236. The cubic root of 5191191168 is about 1731.4993815092.

The spelling of 5191191168 in words is "five billion, one hundred ninety-one million, one hundred ninety-one thousand, one hundred sixty-eight".