10776931409 has 2 divisors, whose sum is σ = 10776931410. Its totient is φ = 10776931408.

The previous prime is 10776931339. The next prime is 10776931469. The reversal of 10776931409 is 90413967701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6950890384 + 3826041025 = 83372^2 + 61855^2 .

It is a cyclic number.

It is not a de Polignac number, because 10776931409 - 2²⁰ = 10775882833 is a prime.

It is a super-2 number, since 2×10776931409² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (10776931469) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5388465704 + 5388465705.

It is an arithmetic number, because the mean of its divisors is an integer number (5388465705).

Almost surely, 2^10776931409 is an apocalyptic number.

It is an amenable number.

10776931409 is a deficient number, since it is larger than the sum of its proper divisors (1).

10776931409 is an equidigital number, since it uses as much as digits as its factorization.

10776931409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 10776931409 in words is "ten billion, seven hundred seventy-six million, nine hundred thirty-one thousand, four hundred nine".