2105318673 has 6 divisors (see below), whose sum is σ = 3041015874. Its totient is φ = 1403545776.

The previous prime is 2105318671. The next prime is 2105318729. The reversal of 2105318673 is 3768135012.

It can be written as a sum of positive squares in only one way, i.e., 2062703889 + 42614784 = 45417^2 + 6528^2 .

It is not a de Polignac number, because 2105318673 - 2¹ = 2105318671 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105318671) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 116962140 + ... + 116962157.

It is an arithmetic number, because the mean of its divisors is an integer number (506835979).

Almost surely, 2^2105318673 is an apocalyptic number.

It is an amenable number.

2105318673 is a deficient number, since it is larger than the sum of its proper divisors (935697201).

2105318673 is a wasteful number, since it uses less digits than its factorization.

2105318673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 233924303 (or 233924300 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 2105318673 is about 45883.7517319584. The cubic root of 2105318673 is about 1281.6593617883.

The spelling of 2105318673 in words is "two billion, one hundred five million, three hundred eighteen thousand, six hundred seventy-three".