6869642305 has 4 divisors (see below), whose sum is σ = 8243570772. Its totient is φ = 5495713840.

The previous prime is 6869642281. The next prime is 6869642317. The reversal of 6869642305 is 5032469686.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5032469686 = 2 ⋅2516234843.

It can be written as a sum of positive squares in 2 ways, for example, as 2932330801 + 3937311504 = 54151^2 + 62748^2 .

It is not a de Polignac number, because 6869642305 - 2¹¹ = 6869640257 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 686964226 + ... + 686964235.

It is an arithmetic number, because the mean of its divisors is an integer number (2060892693).

Almost surely, 2^6869642305 is an apocalyptic number.

It is an amenable number.

6869642305 is a deficient number, since it is larger than the sum of its proper divisors (1373928467).

6869642305 is a wasteful number, since it uses less digits than its factorization.

6869642305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1373928466.

The product of its (nonzero) digits is 1866240, while the sum is 49.

The square root of 6869642305 is about 82883.3053455278. The cubic root of 6869642305 is about 1900.9821611820.

The spelling of 6869642305 in words is "six billion, eight hundred sixty-nine million, six hundred forty-two thousand, three hundred five".