5491889136484 has 27 divisors (see below), whose sum is σ = 9851277909081. Its totient is φ = 2678876571360.

The previous prime is 5491889136467. The next prime is 5491889136497. The reversal of 5491889136484 is 4846319881945.

The square root of 5491889136484 is 2343478.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 264629994084 + 5227259142400 = 514422^2 + 2286320^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 192150907 + ... + 192179485.

Almost surely, 2^{5491889136484} is an apocalyptic number.

5491889136484 is the 2343478-th square number.

It is an amenable number.

5491889136484 is a deficient number, since it is larger than the sum of its proper divisors (4359388772597).

5491889136484 is an frugal number, since it uses more digits than its factorization.

5491889136484 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57244 (or 28622 counting only the distinct ones).

The product of its digits is 238878720, while the sum is 70.

The spelling of 5491889136484 in words is "five trillion, four hundred ninety-one billion, eight hundred eighty-nine million, one hundred thirty-six thousand, four hundred eighty-four".