10345728317 has 4 divisors (see below), whose sum is σ = 10598063196. Its totient is φ = 10093393440.

The previous prime is 10345728311. The next prime is 10345728343. The reversal of 10345728317 is 71382754301.

10345728317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 698756356 + 9646971961 = 26434^2 + 98219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10345728317 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41), and also a Moran number because the ratio is a prime number: 252334837 = 10345728317 / (1 + 0 + 3 + 4 + 5 + 7 + 2 + 8 + 3 + 1 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10345728311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126167378 + ... + 126167459.

It is an arithmetic number, because the mean of its divisors is an integer number (2649515799).

Almost surely, 2^10345728317 is an apocalyptic number.

It is an amenable number.

10345728317 is a deficient number, since it is larger than the sum of its proper divisors (252334879).

10345728317 is an equidigital number, since it uses as much as digits as its factorization.

10345728317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252334878.

The product of its (nonzero) digits is 141120, while the sum is 41.

The spelling of 10345728317 in words is "ten billion, three hundred forty-five million, seven hundred twenty-eight thousand, three hundred seventeen".