1268226847 has 2 divisors, whose sum is σ = 1268226848. Its totient is φ = 1268226846.

The previous prime is 1268226823. The next prime is 1268226857. The reversal of 1268226847 is 7486228621.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1268226847 is a prime.

It is a super-2 number, since 2×1268226847² = 3216798670903122818, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1268226797 and 1268226806.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1268226857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 634113423 + 634113424.

It is an arithmetic number, because the mean of its divisors is an integer number (634113424).

Almost surely, 2^1268226847 is an apocalyptic number.

1268226847 is a deficient number, since it is larger than the sum of its proper divisors (1).

1268226847 is an equidigital number, since it uses as much as digits as its factorization.

1268226847 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 516096, while the sum is 46.

The square root of 1268226847 is about 35612.1727362990. The cubic root of 1268226847 is about 1082.4279074497.

The spelling of 1268226847 in words is "one billion, two hundred sixty-eight million, two hundred twenty-six thousand, eight hundred forty-seven".