91910000101 has 6 divisors (see below), whose sum is σ = 92829020306. Its totient is φ = 90999990000.

The previous prime is 91910000087. The next prime is 91910000137. The reversal of 91910000101 is 10100001919.

It can be written as a sum of positive squares in 3 ways, for example, as 76228449025 + 15681551076 = 276095^2 + 125226^2 .

It is not a de Polignac number, because 91910000101 - 2⁵ = 91910000069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91910000201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4494750 + ... + 4515151.

Almost surely, 2^91910000101 is an apocalyptic number.

It is an amenable number.

91910000101 is a deficient number, since it is larger than the sum of its proper divisors (919020205).

91910000101 is an equidigital number, since it uses as much as digits as its factorization.

91910000101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9010103 (or 9010002 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 22.

The spelling of 91910000101 in words is "ninety-one billion, nine hundred ten million, one hundred one", and thus it is an aban number.