10251318689 has 4 divisors (see below), whose sum is σ = 10252280340. Its totient is φ = 10250357040.

The previous prime is 10251318673. The next prime is 10251318709. The reversal of 10251318689 is 98681315201.

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 5150502289 + 5100816400 = 71767^2 + 71420^2 .

It is a cyclic number.

It is not a de Polignac number, because 10251318689 - 2⁴ = 10251318673 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10251318619) 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, 464654 + ... + 486215.

It is an arithmetic number, because the mean of its divisors is an integer number (2563070085).

Almost surely, 2^10251318689 is an apocalyptic number.

It is an amenable number.

10251318689 is a deficient number, since it is larger than the sum of its proper divisors (961651).

10251318689 is an equidigital number, since it uses as much as digits as its factorization.

10251318689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 961650.

The product of its (nonzero) digits is 103680, while the sum is 44.

The spelling of 10251318689 in words is "ten billion, two hundred fifty-one million, three hundred eighteen thousand, six hundred eighty-nine".