4989554180361 has 27 divisors (see below), whose sum is σ = 7310769573133. Its totient is φ = 3279206457240.

The previous prime is 4989554180353. The next prime is 4989554180389. The reversal of 4989554180361 is 1630814559894.

The square root of 4989554180361 is 2233731.

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

4989554180361 is a `hidden beast` number, since 4 + 9 + 8 + 9 + 5 + 541 + 80 + 3 + 6 + 1 = 666.

It is not a de Polignac number, because 4989554180361 - 2³ = 4989554180353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4989554180321) 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 26 ways as a sum of consecutive naturals, for example, 475779460 + ... + 475789946.

Almost surely, 2^{4989554180361} is an apocalyptic number.

4989554180361 is the 2233731-st square number.

4989554180361 is the 1116866-th centered octagonal number.

It is an amenable number.

4989554180361 is a deficient number, since it is larger than the sum of its proper divisors (2321215392772).

4989554180361 is an frugal number, since it uses more digits than its factorization.

4989554180361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21122 (or 10561 counting only the distinct ones).

The product of its (nonzero) digits is 37324800, while the sum is 63.

The spelling of 4989554180361 in words is "four trillion, nine hundred eighty-nine billion, five hundred fifty-four million, one hundred eighty thousand, three hundred sixty-one".