5591500627891 has 8 divisors (see below), whose sum is σ = 5893448939280. Its totient is φ = 5296828179552.

The previous prime is 5591500627877. The next prime is 5591500627901. The reversal of 5591500627891 is 1987260051955.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5591500627891 - 2⁷ = 5591500627763 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5591500627861) 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, 1818964185 + ... + 1818967258.

It is an arithmetic number, because the mean of its divisors is an integer number (736681117410).

Almost surely, 2^{5591500627891} is an apocalyptic number.

5591500627891 is a deficient number, since it is larger than the sum of its proper divisors (301948311389).

5591500627891 is a wasteful number, since it uses less digits than its factorization.

5591500627891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3637931525.

The product of its (nonzero) digits is 6804000, while the sum is 58.

The spelling of 5591500627891 in words is "five trillion, five hundred ninety-one billion, five hundred million, six hundred twenty-seven thousand, eight hundred ninety-one".