2911824849649 has 9 divisors (see below), whose sum is σ = 2928490100683. Its totient is φ = 2895253931272.

The previous prime is 2911824849587. The next prime is 2911824849697. The reversal of 2911824849649 is 9469484281192.

The square root of 2911824849649 is 1706407.

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., 491099616225 + 2420725233424 = 700785^2 + 1555868^2 .

It is not a de Polignac number, because 2911824849649 - 2²⁹ = 2911287978737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2911824849449) 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, 305442087 + ... + 305451619.

Almost surely, 2^{2911824849649} is an apocalyptic number.

2911824849649 is the 1706407-th square number.

2911824849649 is the 853204-th centered octagonal number.

It is an amenable number.

2911824849649 is a deficient number, since it is larger than the sum of its proper divisors (16665251034).

2911824849649 is an frugal number, since it uses more digits than its factorization.

2911824849649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19424 (or 9712 counting only the distinct ones).

The product of its digits is 71663616, while the sum is 67.

The spelling of 2911824849649 in words is "two trillion, nine hundred eleven billion, eight hundred twenty-four million, eight hundred forty-nine thousand, six hundred forty-nine".