2081529382782 has 64 divisors (see below), whose sum is σ = 4473955528704. Its totient is φ = 644363838720.

The previous prime is 2081529382781. The next prime is 2081529382831. The reversal of 2081529382782 is 2872839251802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2081529382781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1569258 + ... + 2574029.

It is an arithmetic number, because the mean of its divisors is an integer number (69905555136).

Almost surely, 2^{2081529382782} is an apocalyptic number.

2081529382782 is an abundant number, since it is smaller than the sum of its proper divisors (2392426145922).

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

2081529382782 is a wasteful number, since it uses less digits than its factorization.

2081529382782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4143433.

The product of its (nonzero) digits is 7741440, while the sum is 57.

The spelling of 2081529382782 in words is "two trillion, eighty-one billion, five hundred twenty-nine million, three hundred eighty-two thousand, seven hundred eighty-two".