2163643707 has 16 divisors (see below), whose sum is σ = 2896473600. Its totient is φ = 1436635200.

The previous prime is 2163643673. The next prime is 2163643717. The reversal of 2163643707 is 7073463612.

2163643707 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2163643707 - 2²² = 2159449403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2163643717) 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, 935082 + ... + 937392.

It is an arithmetic number, because the mean of its divisors is an integer number (181029600).

Almost surely, 2^2163643707 is an apocalyptic number.

2163643707 is a deficient number, since it is larger than the sum of its proper divisors (732829893).

2163643707 is a wasteful number, since it uses less digits than its factorization.

2163643707 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3434.

The product of its (nonzero) digits is 127008, while the sum is 39.

The square root of 2163643707 is about 46514.9836826801. The cubic root of 2163643707 is about 1293.3872694601.

The spelling of 2163643707 in words is "two billion, one hundred sixty-three million, six hundred forty-three thousand, seven hundred seven".