2749708487329 has 4 divisors (see below), whose sum is σ = 2749909312276. Its totient is φ = 2749507662384.

The previous prime is 2749708487297. The next prime is 2749708487333. The reversal of 2749708487329 is 9237848079472.

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 2729345197329 + 20363290000 = 1652073^2 + 142700^2 .

It is a cyclic number.

It is not a de Polignac number, because 2749708487329 - 2⁵ = 2749708487297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2749708487359) 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, 100391934 + ... + 100419319.

It is an arithmetic number, because the mean of its divisors is an integer number (687477328069).

Almost surely, 2^{2749708487329} is an apocalyptic number.

It is an amenable number.

2749708487329 is a deficient number, since it is larger than the sum of its proper divisors (200824947).

2749708487329 is a wasteful number, since it uses less digits than its factorization.

2749708487329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200824946.

The product of its (nonzero) digits is 341397504, while the sum is 70.

The spelling of 2749708487329 in words is "two trillion, seven hundred forty-nine billion, seven hundred eight million, four hundred eighty-seven thousand, three hundred twenty-nine".