5199919191 has 12 divisors (see below), whose sum is σ = 7544085432. Its totient is φ = 3451340016.

The previous prime is 5199919187. The next prime is 5199919253. The reversal of 5199919191 is 1919199915.

It is not a de Polignac number, because 5199919191 - 2² = 5199919187 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5199919121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1270576 + ... + 1274661.

It is an arithmetic number, because the mean of its divisors is an integer number (628673786).

Almost surely, 2^5199919191 is an apocalyptic number.

5199919191 is a deficient number, since it is larger than the sum of its proper divisors (2344166241).

5199919191 is a wasteful number, since it uses less digits than its factorization.

5199919191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2545470 (or 2545467 counting only the distinct ones).

The product of its digits is 295245, while the sum is 54.

The square root of 5199919191 is about 72110.4651975010. The cubic root of 5199919191 is about 1732.4692362871.

The spelling of 5199919191 in words is "five billion, one hundred ninety-nine million, nine hundred nineteen thousand, one hundred ninety-one".