911667138859 has 2 divisors, whose sum is σ = 911667138860. Its totient is φ = 911667138858.

The previous prime is 911667138841. The next prime is 911667138923. The reversal of 911667138859 is 958831766119.

It is an a-pointer prime, because the next prime (911667138923) can be obtained adding 911667138859 to its sum of digits (64).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 911667138859 - 2¹⁹ = 911666614571 is a prime.

It is a super-2 number, since 2×911667138859² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 911667138859.

It is not a weakly prime, because it can be changed into another prime (911661138859) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 455833569429 + 455833569430.

It is an arithmetic number, because the mean of its divisors is an integer number (455833569430).

Almost surely, 2^911667138859 is an apocalyptic number.

911667138859 is a deficient number, since it is larger than the sum of its proper divisors (1).

911667138859 is an equidigital number, since it uses as much as digits as its factorization.

911667138859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 19595520, while the sum is 64.

The spelling of 911667138859 in words is "nine hundred eleven billion, six hundred sixty-seven million, one hundred thirty-eight thousand, eight hundred fifty-nine".