1366968667 has 4 divisors (see below), whose sum is σ = 1398758680. Its totient is φ = 1335178656.

The previous prime is 1366968641. The next prime is 1366968697. The reversal of 1366968667 is 7668696631.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7668696631 = 59 ⋅129977909.

It is a cyclic number.

It is not a de Polignac number, because 1366968667 - 2¹⁹ = 1366444379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1366968697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15894942 + ... + 15895027.

It is an arithmetic number, because the mean of its divisors is an integer number (349689670).

Almost surely, 2^1366968667 is an apocalyptic number.

1366968667 is a deficient number, since it is larger than the sum of its proper divisors (31790013).

1366968667 is an equidigital number, since it uses as much as digits as its factorization.

1366968667 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31790012.

The product of its digits is 11757312, while the sum is 58.

The square root of 1366968667 is about 36972.5393636953. The cubic root of 1366968667 is about 1109.8207829587.

The spelling of 1366968667 in words is "one billion, three hundred sixty-six million, nine hundred sixty-eight thousand, six hundred sixty-seven".