2065693290 has 64 divisors (see below), whose sum is σ = 5260702464. Its totient is φ = 517321728.

The previous prime is 2065693247. The next prime is 2065693291. The reversal of 2065693290 is 923965602.

It is not an unprimeable number, because it can be changed into a prime (2065693291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 244212 + ... + 252528.

It is an arithmetic number, because the mean of its divisors is an integer number (82198476).

Almost surely, 2^2065693290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2065693290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2630351232).

2065693290 is an abundant number, since it is smaller than the sum of its proper divisors (3195009174).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2065693290 is a wasteful number, since it uses less digits than its factorization.

2065693290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8831.

The product of its (nonzero) digits is 174960, while the sum is 42.

The square root of 2065693290 is about 45449.8986797551. The cubic root of 2065693290 is about 1273.5674367565.

The spelling of 2065693290 in words is "two billion, sixty-five million, six hundred ninety-three thousand, two hundred ninety".