1266867479 has 2 divisors, whose sum is σ = 1266867480. Its totient is φ = 1266867478.

The previous prime is 1266867467. The next prime is 1266867499. The reversal of 1266867479 is 9747686621.

It is a weak prime.

It is an emirp because it is prime and its reverse (9747686621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1266867479 - 2⁸ = 1266867223 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1266867449) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 633433739 + 633433740.

It is an arithmetic number, because the mean of its divisors is an integer number (633433740).

Almost surely, 2^1266867479 is an apocalyptic number.

1266867479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1266867479 is an equidigital number, since it uses as much as digits as its factorization.

1266867479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6096384, while the sum is 56.

The square root of 1266867479 is about 35593.0818980318. The cubic root of 1266867479 is about 1082.0410303184.

The spelling of 1266867479 in words is "one billion, two hundred sixty-six million, eight hundred sixty-seven thousand, four hundred seventy-nine".