11267978765807 has 2 divisors, whose sum is σ = 11267978765808. Its totient is φ = 11267978765806.

The previous prime is 11267978765801. The next prime is 11267978765861. The reversal of 11267978765807 is 70856787976211.

It is a weak prime.

It is an emirp because it is prime and its reverse (70856787976211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11267978765807 - 2²⁰ = 11267977717231 is a prime.

It is a super-2 number, since 2×11267978765807² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11267978765801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5633989382903 + 5633989382904.

It is an arithmetic number, because the mean of its divisors is an integer number (5633989382904).

Almost surely, 2^{11267978765807} is an apocalyptic number.

11267978765807 is a deficient number, since it is larger than the sum of its proper divisors (1).

11267978765807 is an equidigital number, since it uses as much as digits as its factorization.

11267978765807 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 497871360, while the sum is 74.

The spelling of 11267978765807 in words is "eleven trillion, two hundred sixty-seven billion, nine hundred seventy-eight million, seven hundred sixty-five thousand, eight hundred seven".