2065783873 has 12 divisors (see below), whose sum is σ = 2185137108. Its totient is φ = 1952655840.

The previous prime is 2065783871. The next prime is 2065783943. The reversal of 2065783873 is 3783875602.

It can be written as a sum of positive squares in 2 ways, for example, as 640494864 + 1425289009 = 25308^2 + 37753^2 .

It is not a de Polignac number, because 2065783873 - 2¹ = 2065783871 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2065783871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 160215 + ... + 172627.

It is an arithmetic number, because the mean of its divisors is an integer number (182094759).

Almost surely, 2^2065783873 is an apocalyptic number.

It is an amenable number.

2065783873 is a deficient number, since it is larger than the sum of its proper divisors (119353235).

2065783873 is a wasteful number, since it uses less digits than its factorization.

2065783873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12912 (or 12893 counting only the distinct ones).

The product of its (nonzero) digits is 1693440, while the sum is 49.

The square root of 2065783873 is about 45450.8951837035. The cubic root of 2065783873 is about 1273.5860522779.

The spelling of 2065783873 in words is "two billion, sixty-five million, seven hundred eighty-three thousand, eight hundred seventy-three".