13277722441 has 9 divisors (see below), whose sum is σ = 13506108213. Its totient is φ = 13053141120.

The previous prime is 13277722439. The next prime is 13277722453. The reversal of 13277722441 is 14422777231.

The square root of 13277722441 is 115229.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 4513018041 + 8764704400 = 67179^2 + 93620^2 .

It is not a de Polignac number, because 13277722441 - 2¹ = 13277722439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13277722394 and 13277722403.

It is not an unprimeable number, because it can be changed into a prime (13277722841) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 7028025 + ... + 7029913.

Almost surely, 2^13277722441 is an apocalyptic number.

13277722441 is the 115229-th square number.

13277722441 is the 57615-th centered octagonal number.

It is an amenable number.

13277722441 is a deficient number, since it is larger than the sum of its proper divisors (228385772).

13277722441 is an frugal number, since it uses more digits than its factorization.

13277722441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3900 (or 1950 counting only the distinct ones).

The product of its digits is 131712, while the sum is 40.

The spelling of 13277722441 in words is "thirteen billion, two hundred seventy-seven million, seven hundred twenty-two thousand, four hundred forty-one".