10680409081 has 4 divisors (see below), whose sum is σ = 10683317412. Its totient is φ = 10677500752.

The previous prime is 10680409079. The next prime is 10680409093. The reversal of 10680409081 is 18090408601.

It is a happy number.

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 3589927056 + 7090482025 = 59916^2 + 84205^2 .

It is a cyclic number.

It is not a de Polignac number, because 10680409081 - 2¹ = 10680409079 is a prime.

It is a super-2 number, since 2×10680409081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 10680409081.

It is not an unprimeable number, because it can be changed into a prime (10680409781) 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, 1448650 + ... + 1456003.

It is an arithmetic number, because the mean of its divisors is an integer number (2670829353).

Almost surely, 2^10680409081 is an apocalyptic number.

It is an amenable number.

10680409081 is a deficient number, since it is larger than the sum of its proper divisors (2908331).

10680409081 is an equidigital number, since it uses as much as digits as its factorization.

10680409081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908330.

The product of its (nonzero) digits is 13824, while the sum is 37.

The spelling of 10680409081 in words is "ten billion, six hundred eighty million, four hundred nine thousand, eighty-one".