1368638827 has 2 divisors, whose sum is σ = 1368638828. Its totient is φ = 1368638826.

The previous prime is 1368638801. The next prime is 1368638893. The reversal of 1368638827 is 7288368631.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1368638827 - 2¹⁵ = 1368606059 is a prime.

It is not a weakly prime, because it can be changed into another prime (1368608827) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 684319413 + 684319414.

It is an arithmetic number, because the mean of its divisors is an integer number (684319414).

Almost surely, 2^1368638827 is an apocalyptic number.

1368638827 is a deficient number, since it is larger than the sum of its proper divisors (1).

1368638827 is an equidigital number, since it uses as much as digits as its factorization.

1368638827 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 52.

The square root of 1368638827 is about 36995.1189618306. The cubic root of 1368638827 is about 1110.2725913861.

The spelling of 1368638827 in words is "one billion, three hundred sixty-eight million, six hundred thirty-eight thousand, eight hundred twenty-seven".