10768245821 has 4 divisors (see below), whose sum is σ = 10836833532. Its totient is φ = 10699658112.

The previous prime is 10768245779. The next prime is 10768245847. The reversal of 10768245821 is 12854286701.

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 5234522500 + 5533723321 = 72350^2 + 74389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10768245821 is a prime.

It is a super-2 number, since 2×10768245821² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10768245221) 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, 34293620 + ... + 34293933.

It is an arithmetic number, because the mean of its divisors is an integer number (2709208383).

Almost surely, 2^10768245821 is an apocalyptic number.

It is an amenable number.

10768245821 is a deficient number, since it is larger than the sum of its proper divisors (68587711).

10768245821 is an equidigital number, since it uses as much as digits as its factorization.

10768245821 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68587710.

The product of its (nonzero) digits is 215040, while the sum is 44.

The spelling of 10768245821 in words is "ten billion, seven hundred sixty-eight million, two hundred forty-five thousand, eight hundred twenty-one".