2088871855849 has 9 divisors (see below), whose sum is σ = 2094455426949. Its totient is φ = 2083303141920.

The previous prime is 2088871855831. The next prime is 2088871855877. The reversal of 2088871855849 is 9485581788802.

The square root of 2088871855849 is 1445293.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1259074747225 + 829797108624 = 1122085^2 + 910932^2 .

It is not a de Polignac number, because 2088871855849 - 2¹¹ = 2088871853801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2088871825849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 608466637 + ... + 608470069.

It is an arithmetic number, because the mean of its divisors is an integer number (232717269661).

Almost surely, 2^{2088871855849} is an apocalyptic number.

2088871855849 is the 1445293-rd square number.

2088871855849 is the 722647-th centered octagonal number.

It is an amenable number.

2088871855849 is a deficient number, since it is larger than the sum of its proper divisors (5583571100).

2088871855849 is an frugal number, since it uses more digits than its factorization.

2088871855849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7708 (or 3854 counting only the distinct ones).

The product of its (nonzero) digits is 412876800, while the sum is 73.

The spelling of 2088871855849 in words is "two trillion, eighty-eight billion, eight hundred seventy-one million, eight hundred fifty-five thousand, eight hundred forty-nine".