2163834647 has 16 divisors (see below), whose sum is σ = 2477657952. Its totient is φ = 1872046080.

The previous prime is 2163834619. The next prime is 2163834649. The reversal of 2163834647 is 7464383612.

It is a cyclic number.

It is not a de Polignac number, because 2163834647 - 2⁶ = 2163834583 is a prime.

It is a super-2 number, since 2×2163834647² = 9364360759115229218, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2163834598 and 2163834607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2163834649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 32948 + ... + 73574.

It is an arithmetic number, because the mean of its divisors is an integer number (154853622).

Almost surely, 2^2163834647 is an apocalyptic number.

2163834647 is a deficient number, since it is larger than the sum of its proper divisors (313823305).

2163834647 is a wasteful number, since it uses less digits than its factorization.

2163834647 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40898.

The product of its digits is 580608, while the sum is 44.

The square root of 2163834647 is about 46517.0360943171. The cubic root of 2163834647 is about 1293.4253151728.

The spelling of 2163834647 in words is "two billion, one hundred sixty-three million, eight hundred thirty-four thousand, six hundred forty-seven".