10776000821 has 2 divisors, whose sum is σ = 10776000822. Its totient is φ = 10776000820.

The previous prime is 10776000787. The next prime is 10776000839. The reversal of 10776000821 is 12800067701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6754538596 + 4021462225 = 82186^2 + 63415^2 .

It is an emirp because it is prime and its reverse (12800067701) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10776000821 - 2¹⁴ = 10775984437 is a prime.

It is a super-2 number, since 2×10776000821² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10776000721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5388000410 + 5388000411.

It is an arithmetic number, because the mean of its divisors is an integer number (5388000411).

Almost surely, 2^10776000821 is an apocalyptic number.

It is an amenable number.

10776000821 is a deficient number, since it is larger than the sum of its proper divisors (1).

10776000821 is an equidigital number, since it uses as much as digits as its factorization.

10776000821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4704, while the sum is 32.

The spelling of 10776000821 in words is "ten billion, seven hundred seventy-six million, eight hundred twenty-one", and thus it is an aban number.