13466778907 has 2 divisors, whose sum is σ = 13466778908. Its totient is φ = 13466778906.

The previous prime is 13466778901. The next prime is 13466778959. The reversal of 13466778907 is 70987766431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13466778907 - 2¹⁹ = 13466254619 is a prime.

It is a super-2 number, since 2×13466778907² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13466778901) 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, 6733389453 + 6733389454.

It is an arithmetic number, because the mean of its divisors is an integer number (6733389454).

Almost surely, 2^13466778907 is an apocalyptic number.

13466778907 is a deficient number, since it is larger than the sum of its proper divisors (1).

13466778907 is an equidigital number, since it uses as much as digits as its factorization.

13466778907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10668672, while the sum is 58.

The spelling of 13466778907 in words is "thirteen billion, four hundred sixty-six million, seven hundred seventy-eight thousand, nine hundred seven".