91010910201 has 8 divisors (see below), whose sum is σ = 128485990944. Its totient is φ = 57104884800.

The previous prime is 91010910187. The next prime is 91010910223. The reversal of 91010910201 is 10201901019.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-91010910201 is a prime.

It is a super-2 number, since 2×91010910201² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (91010914201) 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 7 ways as a sum of consecutive naturals, for example, 892263775 + ... + 892263876.

It is an arithmetic number, because the mean of its divisors is an integer number (16060748868).

Almost surely, 2^91010910201 is an apocalyptic number.

It is an amenable number.

91010910201 is a deficient number, since it is larger than the sum of its proper divisors (37475080743).

91010910201 is a wasteful number, since it uses less digits than its factorization.

91010910201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784527671.

The product of its (nonzero) digits is 162, while the sum is 24.

The spelling of 91010910201 in words is "ninety-one billion, ten million, nine hundred ten thousand, two hundred one".