2641871803 has 4 divisors (see below), whose sum is σ = 2642528008. Its totient is φ = 2641215600.

The previous prime is 2641871789. The next prime is 2641871821. The reversal of 2641871803 is 3081781462.

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

It is a cyclic number.

It is not a de Polignac number, because 2641871803 - 2¹³ = 2641863611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2641878803) 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, 322026 + ... + 330127.

It is an arithmetic number, because the mean of its divisors is an integer number (660632002).

Almost surely, 2^2641871803 is an apocalyptic number.

2641871803 is a deficient number, since it is larger than the sum of its proper divisors (656205).

2641871803 is an equidigital number, since it uses as much as digits as its factorization.

2641871803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656204.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 2641871803 is about 51399.1420453688. The cubic root of 2641871803 is about 1382.4112090100.

The spelling of 2641871803 in words is "two billion, six hundred forty-one million, eight hundred seventy-one thousand, eight hundred three".