2615606449 has 9 divisors (see below), whose sum is σ = 2639084907. Its totient is φ = 2592336384.

The previous prime is 2615606407. The next prime is 2615606459. The reversal of 2615606449 is 9446065162.

The square root of 2615606449 is 51143.

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

It can be written as a sum of positive squares in only one way, i.e., 2575055025 + 40551424 = 50745^2 + 6368^2 .

It is not a de Polignac number, because 2615606449 - 2⁷ = 2615606321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2615606459) 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, 10177329 + ... + 10177585.

Almost surely, 2^2615606449 is an apocalyptic number.

2615606449 is the 51143-rd square number.

2615606449 is the 25572-nd centered octagonal number.

It is an amenable number.

2615606449 is a deficient number, since it is larger than the sum of its proper divisors (23478458).

2615606449 is an frugal number, since it uses more digits than its factorization.

2615606449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912 (or 456 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 43.

The cubic root of 2615606449 is about 1377.8146551680.

The spelling of 2615606449 in words is "two billion, six hundred fifteen million, six hundred six thousand, four hundred forty-nine".