1016773649 has 2 divisors, whose sum is σ = 1016773650. Its totient is φ = 1016773648.

The previous prime is 1016773613. The next prime is 1016773663. The reversal of 1016773649 is 9463776101.

1016773649 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 956788624 + 59985025 = 30932^2 + 7745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1016773649 is a prime.

It is not a weakly prime, because it can be changed into another prime (1016772649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 508386824 + 508386825.

It is an arithmetic number, because the mean of its divisors is an integer number (508386825).

Almost surely, 2^1016773649 is an apocalyptic number.

It is an amenable number.

1016773649 is a deficient number, since it is larger than the sum of its proper divisors (1).

1016773649 is an equidigital number, since it uses as much as digits as its factorization.

1016773649 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 1016773649 is about 31886.8883555608. Note that the first 3 decimals coincide. The cubic root of 1016773649 is about 1005.5602427334.

The spelling of 1016773649 in words is "one billion, sixteen million, seven hundred seventy-three thousand, six hundred forty-nine".