2745681189729 has 32 divisors (see below), whose sum is σ = 3819739938816. Its totient is φ = 1752391791360.

The previous prime is 2745681189721. The next prime is 2745681189731. The reversal of 2745681189729 is 9279811865472.

It is not a de Polignac number, because 2745681189729 - 2³ = 2745681189721 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2745681189721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3763449 + ... + 4433385.

It is an arithmetic number, because the mean of its divisors is an integer number (119366873088).

Almost surely, 2^{2745681189729} is an apocalyptic number.

It is an amenable number.

2745681189729 is a deficient number, since it is larger than the sum of its proper divisors (1074058749087).

2745681189729 is a wasteful number, since it uses less digits than its factorization.

2745681189729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670445.

The product of its digits is 121927680, while the sum is 69.

The spelling of 2745681189729 in words is "two trillion, seven hundred forty-five billion, six hundred eighty-one million, one hundred eighty-nine thousand, seven hundred twenty-nine".