6844769137 has 8 divisors (see below), whose sum is σ = 6881896296. Its totient is φ = 6807666432.

The previous prime is 6844769117. The next prime is 6844769159. The reversal of 6844769137 is 7319674486.

It can be written as a sum of positive squares in 4 ways, for example, as 2533008241 + 4311760896 = 50329^2 + 65664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6844769137 - 2¹¹ = 6844767089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6844769117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 945343 + ... + 952555.

It is an arithmetic number, because the mean of its divisors is an integer number (860237037).

Almost surely, 2^6844769137 is an apocalyptic number.

It is an amenable number.

6844769137 is a deficient number, since it is larger than the sum of its proper divisors (37127159).

6844769137 is a wasteful number, since it uses less digits than its factorization.

6844769137 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12227.

The product of its digits is 6096384, while the sum is 55.

The square root of 6844769137 is about 82733.1199520482. The cubic root of 6844769137 is about 1898.6850677476.

The spelling of 6844769137 in words is "six billion, eight hundred forty-four million, seven hundred sixty-nine thousand, one hundred thirty-seven".