1068977849 has 2 divisors, whose sum is σ = 1068977850. Its totient is φ = 1068977848.

The previous prime is 1068977827. The next prime is 1068977857. The reversal of 1068977849 is 9487798601.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057875625 + 11102224 = 32525^2 + 3332^2 .

It is a cyclic number.

It is not a de Polignac number, because 1068977849 - 2⁸ = 1068977593 is a prime.

It is a super-2 number, since 2×1068977849² = 2285427283305333602, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1068977809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 534488924 + 534488925.

It is an arithmetic number, because the mean of its divisors is an integer number (534488925).

Almost surely, 2^1068977849 is an apocalyptic number.

It is an amenable number.

1068977849 is a deficient number, since it is larger than the sum of its proper divisors (1).

1068977849 is an equidigital number, since it uses as much as digits as its factorization.

1068977849 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6096384, while the sum is 59.

The square root of 1068977849 is about 32695.2267005445. The cubic root of 1068977849 is about 1022.4833278607.

The spelling of 1068977849 in words is "one billion, sixty-eight million, nine hundred seventy-seven thousand, eight hundred forty-nine".