2081719236 has 24 divisors (see below), whose sum is σ = 5068534464. Its totient is φ = 663736480.

The previous prime is 2081719217. The next prime is 2081719313. The reversal of 2081719236 is 6329171802.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 2081719194 and 2081719203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3770955 + ... + 3771506.

It is an arithmetic number, because the mean of its divisors is an integer number (211188936).

Almost surely, 2^2081719236 is an apocalyptic number.

It is an amenable number.

2081719236 is an abundant number, since it is smaller than the sum of its proper divisors (2986815228).

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

2081719236 is a wasteful number, since it uses less digits than its factorization.

2081719236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7542491 (or 7542489 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 39.

The square root of 2081719236 is about 45625.8614822778. The cubic root of 2081719236 is about 1276.8524626333.

The spelling of 2081719236 in words is "two billion, eighty-one million, seven hundred nineteen thousand, two hundred thirty-six".