2186653280264 has 8 divisors (see below), whose sum is σ = 4099974900510. Its totient is φ = 1093326640128.

The previous prime is 2186653280261. The next prime is 2186653280297. The reversal of 2186653280264 is 4620823566812.

It can be written as a sum of positive squares in only one way, i.e., 2118066908164 + 68586372100 = 1455358^2 + 261890^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×2186653280264² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2186653280261) 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 as a sum of consecutive naturals, namely, 136665830009 + ... + 136665830024.

Almost surely, 2^{2186653280264} is an apocalyptic number.

It is an amenable number.

2186653280264 is a deficient number, since it is larger than the sum of its proper divisors (1913321620246).

2186653280264 is a wasteful number, since it uses less digits than its factorization.

2186653280264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273331660039 (or 273331660035 counting only the distinct ones).

The product of its (nonzero) digits is 6635520, while the sum is 53.

The spelling of 2186653280264 in words is "two trillion, one hundred eighty-six billion, six hundred fifty-three million, two hundred eighty thousand, two hundred sixty-four".