7326161649 has 27 divisors (see below), whose sum is σ = 10724687883. Its totient is φ = 4819228272.

The previous prime is 7326161639. The next prime is 7326161669. The reversal of 7326161649 is 9461616237.

The square root of 7326161649 is 85593.

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

7326161649 is a `hidden beast` number, since 7 + 3 + 26 + 1 + 616 + 4 + 9 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1262736225 + 6063425424 = 35535^2 + 77868^2 .

It is not a de Polignac number, because 7326161649 - 2¹¹ = 7326159601 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7326161639) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 26448099 + ... + 26448375.

Almost surely, 2^7326161649 is an apocalyptic number.

7326161649 is the 85593-rd square number.

7326161649 is the 42797-th centered octagonal number.

It is an amenable number.

7326161649 is a deficient number, since it is larger than the sum of its proper divisors (3398526234).

7326161649 is an equidigital number, since it uses as much as digits as its factorization.

7326161649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 766 (or 383 counting only the distinct ones).

The product of its digits is 326592, while the sum is 45.

The cubic root of 7326161649 is about 1942.1920212577.

The spelling of 7326161649 in words is "seven billion, three hundred twenty-six million, one hundred sixty-one thousand, six hundred forty-nine".