1266440627 has 2 divisors, whose sum is σ = 1266440628. Its totient is φ = 1266440626.

The previous prime is 1266440621. The next prime is 1266440641. The reversal of 1266440627 is 7260446621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1266440627 - 2⁶ = 1266440563 is a prime.

It is not a weakly prime, because it can be changed into another prime (1266440621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633220313 + 633220314.

It is an arithmetic number, because the mean of its divisors is an integer number (633220314).

Almost surely, 2^1266440627 is an apocalyptic number.

1266440627 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266440627 is an equidigital number, since it uses as much as digits as its factorization.

1266440627 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 1266440627 is about 35587.0851152493. The cubic root of 1266440627 is about 1081.9194908338.

The spelling of 1266440627 in words is "one billion, two hundred sixty-six million, four hundred forty thousand, six hundred twenty-seven".