10778366749 has 2 divisors, whose sum is σ = 10778366750. Its totient is φ = 10778366748.

The previous prime is 10778366701. The next prime is 10778366761. The reversal of 10778366749 is 94766387701.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10606940100 + 171426649 = 102990^2 + 13093^2 .

It is a cyclic number.

It is not a de Polignac number, because 10778366749 - 2²¹ = 10776269597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10778366693 and 10778366702.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10778367749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5389183374 + 5389183375.

It is an arithmetic number, because the mean of its divisors is an integer number (5389183375).

Almost surely, 2^10778366749 is an apocalyptic number.

It is an amenable number.

10778366749 is a deficient number, since it is larger than the sum of its proper divisors (1).

10778366749 is an equidigital number, since it uses as much as digits as its factorization.

10778366749 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 58.

The spelling of 10778366749 in words is "ten billion, seven hundred seventy-eight million, three hundred sixty-six thousand, seven hundred forty-nine".