3611168649 has 45 divisors (see below), whose sum is σ = 5939234301. Its totient is φ = 2184981480.

The previous prime is 3611168647. The next prime is 3611168657. The reversal of 3611168649 is 9468611163.

The square root of 3611168649 is 60093.

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

It is not a de Polignac number, because 3611168649 - 2¹ = 3611168647 is a prime.

It is a super-3 number, since 3×3611168649³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (3611168647) by changing a digit.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 5948904 + ... + 5949510.

Almost surely, 2^3611168649 is an apocalyptic number.

3611168649 is the 60093-rd square number.

3611168649 is the 30047-th centered octagonal number.

It is an amenable number.

3611168649 is a deficient number, since it is larger than the sum of its proper divisors (2328065652).

3611168649 is an frugal number, since it uses more digits than its factorization.

3611168649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1248 (or 621 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The cubic root of 3611168649 is about 1534.2021621049.

Multiplying 3611168649 by its product of digits (186624), we get a square (673930737950976 = 25960176²).

The spelling of 3611168649 in words is "three billion, six hundred eleven million, one hundred sixty-eight thousand, six hundred forty-nine".