91394546501 has 2 divisors, whose sum is σ = 91394546502. Its totient is φ = 91394546500.

The previous prime is 91394546483. The next prime is 91394546519. The reversal of 91394546501 is 10564549319.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (91394546483) and next prime (91394546519).

It can be written as a sum of positive squares in only one way, i.e., 70492905025 + 20901641476 = 265505^2 + 144574^2 .

It is an emirp because it is prime and its reverse (10564549319) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91394546501 - 2⁶ = 91394546437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91394546591) 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, 45697273250 + 45697273251.

It is an arithmetic number, because the mean of its divisors is an integer number (45697273251).

Almost surely, 2^91394546501 is an apocalyptic number.

It is an amenable number.

91394546501 is a deficient number, since it is larger than the sum of its proper divisors (1).

91394546501 is an equidigital number, since it uses as much as digits as its factorization.

91394546501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 583200, while the sum is 47.

The spelling of 91394546501 in words is "ninety-one billion, three hundred ninety-four million, five hundred forty-six thousand, five hundred one".