91848684853 has 2 divisors, whose sum is σ = 91848684854. Its totient is φ = 91848684852.

The previous prime is 91848684847. The next prime is 91848684877. The reversal of 91848684853 is 35848684819.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50588106724 + 41260578129 = 224918^2 + 203127^2 .

It is an emirp because it is prime and its reverse (35848684819) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 91848684853 - 2¹⁷ = 91848553781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91848684253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45924342426 + 45924342427.

It is an arithmetic number, because the mean of its divisors is an integer number (45924342427).

Almost surely, 2^91848684853 is an apocalyptic number.

It is an amenable number.

91848684853 is a deficient number, since it is larger than the sum of its proper divisors (1).

91848684853 is an equidigital number, since it uses as much as digits as its factorization.

91848684853 is an evil number, because the sum of its binary digits is even.

The product of its digits is 53084160, while the sum is 64.

The spelling of 91848684853 in words is "ninety-one billion, eight hundred forty-eight million, six hundred eighty-four thousand, eight hundred fifty-three".