2271611477 has 2 divisors, whose sum is σ = 2271611478. Its totient is φ = 2271611476.

The previous prime is 2271611471. The next prime is 2271611497. The reversal of 2271611477 is 7741161722.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1447117681 + 824493796 = 38041^2 + 28714^2 .

It is a cyclic number.

It is not a de Polignac number, because 2271611477 - 2²⁴ = 2254834261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2271611477.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2271611471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135805738 + 1135805739.

It is an arithmetic number, because the mean of its divisors is an integer number (1135805739).

Almost surely, 2^2271611477 is an apocalyptic number.

It is an amenable number.

2271611477 is a deficient number, since it is larger than the sum of its proper divisors (1).

2271611477 is an equidigital number, since it uses as much as digits as its factorization.

2271611477 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32928, while the sum is 38.

The square root of 2271611477 is about 47661.4254612679. The cubic root of 2271611477 is about 1314.5527501167.

The spelling of 2271611477 in words is "two billion, two hundred seventy-one million, six hundred eleven thousand, four hundred seventy-seven".