5591738880 has 960 divisors, whose sum is σ = 25078394880. Its totient is φ = 1170505728.

The previous prime is 5591738879. The next prime is 5591738917. The reversal of 5591738880 is 888371955.

5591738880 is a `hidden beast` number, since 559 + 1 + 7 + 3 + 8 + 8 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (960).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 44029377 + ... + 44029503.

It is an arithmetic number, because the mean of its divisors is an integer number (26123328).

Almost surely, 2^5591738880 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5591738880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12539197440).

5591738880 is an abundant number, since it is smaller than the sum of its proper divisors (19486656000).

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

5591738880 is a wasteful number, since it uses less digits than its factorization.

5591738880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 157 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 54.

The square root of 5591738880 is about 74777.9304340525. The cubic root of 5591738880 is about 1774.9343497507.

The spelling of 5591738880 in words is "five billion, five hundred ninety-one million, seven hundred thirty-eight thousand, eight hundred eighty".