10851677609 has 4 divisors (see below), whose sum is σ = 11490011604. Its totient is φ = 10213343616.

The previous prime is 10851677539. The next prime is 10851677623. The reversal of 10851677609 is 90677615801.

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 7099747600 + 3751930009 = 84260^2 + 61253^2 .

It is a cyclic number.

It is not a de Polignac number, because 10851677609 - 2¹² = 10851673513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10851677699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319166972 + ... + 319167005.

It is an arithmetic number, because the mean of its divisors is an integer number (2872502901).

Almost surely, 2^10851677609 is an apocalyptic number.

It is an amenable number.

10851677609 is a deficient number, since it is larger than the sum of its proper divisors (638333995).

10851677609 is an equidigital number, since it uses as much as digits as its factorization.

10851677609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638333994.

The product of its (nonzero) digits is 635040, while the sum is 50.

The spelling of 10851677609 in words is "ten billion, eight hundred fifty-one million, six hundred seventy-seven thousand, six hundred nine".