91938348167 has 2 divisors, whose sum is σ = 91938348168. Its totient is φ = 91938348166.

The previous prime is 91938348163. The next prime is 91938348211. The reversal of 91938348167 is 76184383919.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 91938348167 - 2² = 91938348163 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91938348163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45969174083 + 45969174084.

It is an arithmetic number, because the mean of its divisors is an integer number (45969174084).

Almost surely, 2^91938348167 is an apocalyptic number.

91938348167 is a deficient number, since it is larger than the sum of its proper divisors (1).

91938348167 is an equidigital number, since it uses as much as digits as its factorization.

91938348167 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7838208, while the sum is 59.

The spelling of 91938348167 in words is "ninety-one billion, nine hundred thirty-eight million, three hundred forty-eight thousand, one hundred sixty-seven".