2045341621803 has 4 divisors (see below), whose sum is σ = 2727122162408. Its totient is φ = 1363561081200.

The previous prime is 2045341621801. The next prime is 2045341621877. The reversal of 2045341621803 is 3081261435402.

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

It is not a de Polignac number, because 2045341621803 - 2¹ = 2045341621801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2045341621801) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340890270298 + ... + 340890270303.

It is an arithmetic number, because the mean of its divisors is an integer number (681780540602).

Almost surely, 2^{2045341621803} is an apocalyptic number.

2045341621803 is a deficient number, since it is larger than the sum of its proper divisors (681780540605).

2045341621803 is an equidigital number, since it uses as much as digits as its factorization.

2045341621803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681780540604.

The product of its (nonzero) digits is 138240, while the sum is 39.

The spelling of 2045341621803 in words is "two trillion, forty-five billion, three hundred forty-one million, six hundred twenty-one thousand, eight hundred three".