2706841649 has 4 divisors (see below), whose sum is σ = 2708706036. Its totient is φ = 2704977264.

The previous prime is 2706841637. The next prime is 2706841667. The reversal of 2706841649 is 9461486072.

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 2620723249 + 86118400 = 51193^2 + 9280^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2706841649 is a prime.

It is a super-2 number, since 2×2706841649² = 14653983425522078402, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2706841349) 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, 930014 + ... + 932919.

It is an arithmetic number, because the mean of its divisors is an integer number (677176509).

Almost surely, 2^2706841649 is an apocalyptic number.

It is an amenable number.

2706841649 is a deficient number, since it is larger than the sum of its proper divisors (1864387).

2706841649 is a wasteful number, since it uses less digits than its factorization.

2706841649 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1864386.

The product of its (nonzero) digits is 580608, while the sum is 47.

The square root of 2706841649 is about 52027.3163732284. The cubic root of 2706841649 is about 1393.6518106969.

The spelling of 2706841649 in words is "two billion, seven hundred six million, eight hundred forty-one thousand, six hundred forty-nine".