2081517841803 has 4 divisors (see below), whose sum is σ = 2775357122408. Its totient is φ = 1387678561200.

The previous prime is 2081517841763. The next prime is 2081517841807. The reversal of 2081517841803 is 3081487151802.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2081517841803 - 2¹³ = 2081517833611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2081517841807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 346919640298 + ... + 346919640303.

It is an arithmetic number, because the mean of its divisors is an integer number (693839280602).

Almost surely, 2^{2081517841803} is an apocalyptic number.

2081517841803 is a deficient number, since it is larger than the sum of its proper divisors (693839280605).

2081517841803 is an equidigital number, since it uses as much as digits as its factorization.

2081517841803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 693839280604.

The product of its (nonzero) digits is 430080, while the sum is 48.

The spelling of 2081517841803 in words is "two trillion, eighty-one billion, five hundred seventeen million, eight hundred forty-one thousand, eight hundred three".