2746349681 has 4 divisors (see below), whose sum is σ = 2773541364. Its totient is φ = 2719158000.

The previous prime is 2746349659. The next prime is 2746349687. The reversal of 2746349681 is 1869436472.

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 1785907600 + 960442081 = 42260^2 + 30991^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2746349681 is a prime.

It is a super-2 number, since 2×2746349681² = 15084873140657603522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2746349687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13595690 + ... + 13595891.

It is an arithmetic number, because the mean of its divisors is an integer number (693385341).

Almost surely, 2^2746349681 is an apocalyptic number.

It is an amenable number.

2746349681 is a deficient number, since it is larger than the sum of its proper divisors (27191683).

2746349681 is a wasteful number, since it uses less digits than its factorization.

2746349681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27191682.

The product of its digits is 1741824, while the sum is 50.

The square root of 2746349681 is about 52405.6264250319. The cubic root of 2746349681 is about 1400.3994916060.

The spelling of 2746349681 in words is "two billion, seven hundred forty-six million, three hundred forty-nine thousand, six hundred eighty-one".