2081358500 has 48 divisors (see below), whose sum is σ = 4895370480. Its totient is φ = 768499200.

The previous prime is 2081358497. The next prime is 2081358509. The reversal of 2081358500 is 58531802.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 706283776 + 1375074724 = 26576^2 + 37082^2 .

It is not an unprimeable number, because it can be changed into a prime (2081358509) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 153605 + ... + 166604.

It is an arithmetic number, because the mean of its divisors is an integer number (101986885).

Almost surely, 2^2081358500 is an apocalyptic number.

2081358500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2081358500 is an abundant number, since it is smaller than the sum of its proper divisors (2814011980).

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

2081358500 is a wasteful number, since it uses less digits than its factorization.

2081358500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320241 (or 320229 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 32.

The square root of 2081358500 is about 45621.9081144136. The cubic root of 2081358500 is about 1276.7787041664.

The spelling of 2081358500 in words is "two billion, eighty-one million, three hundred fifty-eight thousand, five hundred".