9887238782404 has 27 divisors (see below), whose sum is σ = 17361580988493. Its totient is φ = 4926844027872.

The previous prime is 9887238782401. The next prime is 9887238782429. The reversal of 9887238782404 is 4042878327889.

The square root of 9887238782404 is 3144398.

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., 63076322500 + 9824162459904 = 251150^2 + 3134352^2 .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9887238782401) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 1968390637 + ... + 1968395659.

Almost surely, 2^{9887238782404} is an apocalyptic number.

9887238782404 is the 3144398-th square number.

It is an amenable number.

9887238782404 is a deficient number, since it is larger than the sum of its proper divisors (7474342206089).

9887238782404 is an frugal number, since it uses more digits than its factorization.

9887238782404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10676 (or 5338 counting only the distinct ones).

The product of its (nonzero) digits is 346816512, while the sum is 70.

The spelling of 9887238782404 in words is "nine trillion, eight hundred eighty-seven billion, two hundred thirty-eight million, seven hundred eighty-two thousand, four hundred four".