2751249249 has 24 divisors (see below), whose sum is σ = 4551602432. Its totient is φ = 1568730240.

The previous prime is 2751249211. The next prime is 2751249253. The reversal of 2751249249 is 9429421572.

2751249249 is a `hidden beast` number, since 2 + 7 + 512 + 4 + 92 + 49 = 666.

It is not a de Polignac number, because 2751249249 - 2¹¹ = 2751247201 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2751249209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 17992 + ... + 76329.

Almost surely, 2^2751249249 is an apocalyptic number.

It is an amenable number.

2751249249 is a deficient number, since it is larger than the sum of its proper divisors (1800353183).

2751249249 is a wasteful number, since it uses less digits than its factorization.

2751249249 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94797 (or 94794 counting only the distinct ones).

The product of its digits is 362880, while the sum is 45.

The square root of 2751249249 is about 52452.3521779529. The cubic root of 2751249249 is about 1401.2317813831.

The spelling of 2751249249 in words is "two billion, seven hundred fifty-one million, two hundred forty-nine thousand, two hundred forty-nine".