2163641351 has 4 divisors (see below), whose sum is σ = 2165056104. Its totient is φ = 2162226600.

The previous prime is 2163641297. The next prime is 2163641371. The reversal of 2163641351 is 1531463612.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2163641351 - 2¹⁰ = 2163640327 is a prime.

It is a super-3 number, since 3×2163641351³ (a number of 29 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163641371) 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 3 ways as a sum of consecutive naturals, for example, 705080 + ... + 708141.

It is an arithmetic number, because the mean of its divisors is an integer number (541264026).

Almost surely, 2^2163641351 is an apocalyptic number.

2163641351 is a deficient number, since it is larger than the sum of its proper divisors (1414753).

2163641351 is a wasteful number, since it uses less digits than its factorization.

2163641351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1414752.

The product of its digits is 12960, while the sum is 32.

The square root of 2163641351 is about 46514.9583575004. The cubic root of 2163641351 is about 1293.3868000018.

The spelling of 2163641351 in words is "two billion, one hundred sixty-three million, six hundred forty-one thousand, three hundred fifty-one".