2688364161 has 24 divisors (see below), whose sum is σ = 4602305344. Its totient is φ = 1536207120.

The previous prime is 2688364157. The next prime is 2688364183. The reversal of 2688364161 is 1614638862.

It is not a de Polignac number, because 2688364161 - 2² = 2688364157 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2688364141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 788530 + ... + 791931.

Almost surely, 2^2688364161 is an apocalyptic number.

2688364161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

2688364161 is a deficient number, since it is larger than the sum of its proper divisors (1913941183).

2688364161 is an equidigital number, since it uses as much as digits as its factorization.

2688364161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1580483 (or 1580471 counting only the distinct ones).

The product of its digits is 331776, while the sum is 45.

The square root of 2688364161 is about 51849.4374222132. The cubic root of 2688364161 is about 1390.4734444714.

The spelling of 2688364161 in words is "two billion, six hundred eighty-eight million, three hundred sixty-four thousand, one hundred sixty-one".