2163641349 has 8 divisors (see below), whose sum is σ = 3010283712. Its totient is φ = 1379713280.

The previous prime is 2163641297. The next prime is 2163641371. The reversal of 2163641349 is 9431463612.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2163641349 - 2⁹ = 2163640837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163641399) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15678492 + ... + 15678629.

It is an arithmetic number, because the mean of its divisors is an integer number (376285464).

Almost surely, 2^2163641349 is an apocalyptic number.

It is an amenable number.

2163641349 is a deficient number, since it is larger than the sum of its proper divisors (846642363).

2163641349 is a wasteful number, since it uses less digits than its factorization.

2163641349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31357147.

The product of its digits is 93312, while the sum is 39.

The square root of 2163641349 is about 46514.9583360020. The cubic root of 2163641349 is about 1293.3867996033.

The spelling of 2163641349 in words is "two billion, one hundred sixty-three million, six hundred forty-one thousand, three hundred forty-nine".