5191936844 has 24 divisors (see below), whose sum is σ = 9134283648. Its totient is φ = 2582161920.

The previous prime is 5191936843. The next prime is 5191936861. The reversal of 5191936844 is 4486391915.

It is a junction number, because it is equal to n+sod(n) for n = 5191936792 and 5191936801.

It is not an unprimeable number, because it can be changed into a prime (5191936843) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1854854 + ... + 1857650.

It is an arithmetic number, because the mean of its divisors is an integer number (380595152).

Almost surely, 2^5191936844 is an apocalyptic number.

It is an amenable number.

5191936844 is a deficient number, since it is larger than the sum of its proper divisors (3942346804).

5191936844 is a wasteful number, since it uses less digits than its factorization.

5191936844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5105 (or 5103 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 5191936844 is about 72055.0958919631. The cubic root of 5191936844 is about 1731.5822832091.

The spelling of 5191936844 in words is "five billion, one hundred ninety-one million, nine hundred thirty-six thousand, eight hundred forty-four".