10268108863321 has 3 divisors (see below), whose sum is σ = 10268112067711. Its totient is φ = 10268105658932.

The previous prime is 10268108863303. The next prime is 10268108863333. The reversal of 10268108863321 is 12336880186201.

It is a happy number.

The square root of 10268108863321 is 3204389.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 10264404923721 + 3703939600 = 3203811^2 + 60860^2 .

It is a de Polignac number, because none of the positive numbers 2^k-10268108863321 is a prime.

It is a super-2 number, since 2×10268108863321² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10268108863351) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1602195 + ... + 4806583.

Almost surely, 2^{10268108863321} is an apocalyptic number.

10268108863321 is the 3204389-th square number.

10268108863321 is the 1602195-th centered octagonal number.

It is an amenable number.

10268108863321 is a deficient number, since it is larger than the sum of its proper divisors (3204390).

10268108863321 is an frugal number, since it uses more digits than its factorization.

10268108863321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6408778 (or 3204389 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 49.

Multiplying 10268108863321 by its sum of digits (49), we get a square (503137334302729 = 22430723²).

The spelling of 10268108863321 in words is "ten trillion, two hundred sixty-eight billion, one hundred eight million, eight hundred sixty-three thousand, three hundred twenty-one".