5191980444 has 60 divisors (see below), whose sum is σ = 15511849584. Its totient is φ = 1483422336.

The previous prime is 5191980427. The next prime is 5191980449. The reversal of 5191980444 is 4440891915.

It is a happy number.

5191980444 is a `hidden beast` number, since 5 + 19 + 198 + 0 + 444 = 666.

It is a self number, because there is not a number n which added to its sum of digits gives 5191980444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191980449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1142349 + ... + 1146884.

Almost surely, 2^5191980444 is an apocalyptic number.

5191980444 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

5191980444 is an abundant number, since it is smaller than the sum of its proper divisors (10319869140).

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

5191980444 is a wasteful number, since it uses less digits than its factorization.

5191980444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2289256 (or 2289245 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 45.

The square root of 5191980444 is about 72055.3984375911. The cubic root of 5191980444 is about 1731.5871302620.

The spelling of 5191980444 in words is "five billion, one hundred ninety-one million, nine hundred eighty thousand, four hundred forty-four".