5191544380 has 24 divisors (see below), whose sum is σ = 11893356720. Its totient is φ = 1887834240.

The previous prime is 5191544357. The next prime is 5191544387. The reversal of 5191544380 is 834451915.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5191544387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11798745 + ... + 11799184.

It is an arithmetic number, because the mean of its divisors is an integer number (495556530).

Almost surely, 2^5191544380 is an apocalyptic number.

It is an amenable number.

5191544380 is an abundant number, since it is smaller than the sum of its proper divisors (6701812340).

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

5191544380 is a wasteful number, since it uses less digits than its factorization.

5191544380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23597949 (or 23597947 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 5191544380 is about 72052.3724800232. The cubic root of 5191544380 is about 1731.5386513974.

The spelling of 5191544380 in words is "five billion, one hundred ninety-one million, five hundred forty-four thousand, three hundred eighty".