2861800573 has 4 divisors (see below), whose sum is σ = 2872682208. Its totient is φ = 2850918940.

The previous prime is 2861800567. The next prime is 2861800589. The reversal of 2861800573 is 3750081682.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2861800573 - 2¹⁷ = 2861669501 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861800673) 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, 5440423 + ... + 5440948.

It is an arithmetic number, because the mean of its divisors is an integer number (718170552).

Almost surely, 2^2861800573 is an apocalyptic number.

It is an amenable number.

2861800573 is a deficient number, since it is larger than the sum of its proper divisors (10881635).

2861800573 is a wasteful number, since it uses less digits than its factorization.

2861800573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10881634.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 2861800573 is about 53495.7995827710. The cubic root of 2861800573 is about 1419.7540691929.

The spelling of 2861800573 in words is "two billion, eight hundred sixty-one million, eight hundred thousand, five hundred seventy-three".