2547722671 has 4 divisors (see below), whose sum is σ = 2743701352. Its totient is φ = 2351743992.

The previous prime is 2547722669. The next prime is 2547722687. The reversal of 2547722671 is 1762277452.

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

It is not a de Polignac number, because 2547722671 - 2¹ = 2547722669 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 (2547722621) 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, 97989321 + ... + 97989346.

It is an arithmetic number, because the mean of its divisors is an integer number (685925338).

Almost surely, 2^2547722671 is an apocalyptic number.

2547722671 is a deficient number, since it is larger than the sum of its proper divisors (195978681).

2547722671 is a wasteful number, since it uses less digits than its factorization.

2547722671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195978680.

The product of its digits is 329280, while the sum is 43.

The square root of 2547722671 is about 50474.9707379806. The cubic root of 2547722671 is about 1365.7903835794.

The spelling of 2547722671 in words is "two billion, five hundred forty-seven million, seven hundred twenty-two thousand, six hundred seventy-one".