8981897381705 has 8 divisors (see below), whose sum is σ = 10778293165704. Its totient is φ = 7185507033600.

The previous prime is 8981897381689. The next prime is 8981897381729. The reversal of 8981897381705 is 5071837981898.

It can be written as a sum of positive squares in 4 ways, for example, as 5670418237696 + 3311479144009 = 2381264^2 + 1819747^2 .

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

It is not a de Polignac number, because 8981897381705 - 2⁴ = 8981897381689 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4880345 + ... + 6463865.

It is an arithmetic number, because the mean of its divisors is an integer number (1347286645713).

Almost surely, 2^{8981897381705} is an apocalyptic number.

It is an amenable number.

8981897381705 is a deficient number, since it is larger than the sum of its proper divisors (1796395783999).

8981897381705 is a wasteful number, since it uses less digits than its factorization.

8981897381705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2717947.

The product of its (nonzero) digits is 243855360, while the sum is 74.

The spelling of 8981897381705 in words is "eight trillion, nine hundred eighty-one billion, eight hundred ninety-seven million, three hundred eighty-one thousand, seven hundred five".