2797722871 has 4 divisors (see below), whose sum is σ = 2801419432. Its totient is φ = 2794026312.

The previous prime is 2797722869. The next prime is 2797722877. The reversal of 2797722871 is 1782277972.

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 2797722871 - 2¹ = 2797722869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2797722877) 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, 1847145 + ... + 1848658.

It is an arithmetic number, because the mean of its divisors is an integer number (700354858).

Almost surely, 2^2797722871 is an apocalyptic number.

2797722871 is a deficient number, since it is larger than the sum of its proper divisors (3696561).

2797722871 is an equidigital number, since it uses as much as digits as its factorization.

2797722871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3696560.

The product of its digits is 1382976, while the sum is 52.

The square root of 2797722871 is about 52893.5049982510. The cubic root of 2797722871 is about 1409.0775568755.

The spelling of 2797722871 in words is "two billion, seven hundred ninety-seven million, seven hundred twenty-two thousand, eight hundred seventy-one".