2749133216 has 12 divisors (see below), whose sum is σ = 5412356082. Its totient is φ = 1374566592.

The previous prime is 2749133203. The next prime is 2749133249. The reversal of 2749133216 is 6123319472.

It can be written as a sum of positive squares in only one way, i.e., 1428537616 + 1320595600 = 37796^2 + 36340^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2749133216.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42955175 + ... + 42955238.

Almost surely, 2^2749133216 is an apocalyptic number.

It is an amenable number.

2749133216 is a deficient number, since it is larger than the sum of its proper divisors (2663222866).

2749133216 is an equidigital number, since it uses as much as digits as its factorization.

2749133216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85910423 (or 85910415 counting only the distinct ones).

The product of its digits is 54432, while the sum is 38.

The square root of 2749133216 is about 52432.1772960078. The cubic root of 2749133216 is about 1400.8724521107.

The spelling of 2749133216 in words is "two billion, seven hundred forty-nine million, one hundred thirty-three thousand, two hundred sixteen".