2089661277 has 16 divisors (see below), whose sum is σ = 3050337600. Its totient is φ = 1261948800.

The previous prime is 2089661261. The next prime is 2089661333. The reversal of 2089661277 is 7721669802.

It is not a de Polignac number, because 2089661277 - 2⁴ = 2089661261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2089661177) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 103402 + ... + 121947.

It is an arithmetic number, because the mean of its divisors is an integer number (190646100).

Almost surely, 2^2089661277 is an apocalyptic number.

It is an amenable number.

2089661277 is a deficient number, since it is larger than the sum of its proper divisors (960676323).

2089661277 is a wasteful number, since it uses less digits than its factorization.

2089661277 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225644.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 2089661277 is about 45712.8130506098. The cubic root of 2089661277 is about 1278.4741904028.

It can be divided in two parts, 2089 and 661277, that added together give a palindrome (663366).

The spelling of 2089661277 in words is "two billion, eighty-nine million, six hundred sixty-one thousand, two hundred seventy-seven".