2772122047 has 4 divisors (see below), whose sum is σ = 2793283416. Its totient is φ = 2750960680.

The previous prime is 2772122039. The next prime is 2772122077. The reversal of 2772122047 is 7402212772.

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 2772122047 - 2³ = 2772122039 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 (2772122077) 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, 10580488 + ... + 10580749.

It is an arithmetic number, because the mean of its divisors is an integer number (698320854).

Almost surely, 2^2772122047 is an apocalyptic number.

2772122047 is a deficient number, since it is larger than the sum of its proper divisors (21161369).

2772122047 is a wasteful number, since it uses less digits than its factorization.

2772122047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21161368.

The product of its (nonzero) digits is 21952, while the sum is 34.

The square root of 2772122047 is about 52650.9453571349. The cubic root of 2772122047 is about 1404.7664149870.

The spelling of 2772122047 in words is "two billion, seven hundred seventy-two million, one hundred twenty-two thousand, forty-seven".