5191376919 has 4 divisors (see below), whose sum is σ = 6921835896. Its totient is φ = 3460917944.

The previous prime is 5191376881. The next prime is 5191376923. The reversal of 5191376919 is 9196731915.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 5191376919 - 2⁷ = 5191376791 is a prime.

It is a super-2 number, since 2×5191376919² = 53900788630251865122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191376999) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 865229484 + ... + 865229489.

It is an arithmetic number, because the mean of its divisors is an integer number (1730458974).

Almost surely, 2^5191376919 is an apocalyptic number.

5191376919 is a deficient number, since it is larger than the sum of its proper divisors (1730458977).

5191376919 is a wasteful number, since it uses less digits than its factorization.

5191376919 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1730458976.

The product of its digits is 459270, while the sum is 51.

The square root of 5191376919 is about 72051.2103923314. The cubic root of 5191376919 is about 1731.5200334107.

The spelling of 5191376919 in words is "five billion, one hundred ninety-one million, three hundred seventy-six thousand, nine hundred nineteen".