2749633872805 has 4 divisors (see below), whose sum is σ = 3299560647372. Its totient is φ = 2199707098240.

The previous prime is 2749633872751. The next prime is 2749633872809. The reversal of 2749633872805 is 5082783369472.

It is a Cunningham number, because it is equal to 1658202²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 989869786084 + 1759764086721 = 994922^2 + 1326561^2 .

It is not a de Polignac number, because 2749633872805 - 2¹¹ = 2749633870757 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2749633872809) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 274963387276 + ... + 274963387285.

It is an arithmetic number, because the mean of its divisors is an integer number (824890161843).

Almost surely, 2^{2749633872805} is an apocalyptic number.

It is an amenable number.

2749633872805 is a deficient number, since it is larger than the sum of its proper divisors (549926774567).

2749633872805 is an equidigital number, since it uses as much as digits as its factorization.

2749633872805 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549926774566.

The product of its (nonzero) digits is 121927680, while the sum is 64.

The spelling of 2749633872805 in words is "two trillion, seven hundred forty-nine billion, six hundred thirty-three million, eight hundred seventy-two thousand, eight hundred five".