91109200010 has 32 divisors (see below), whose sum is σ = 168616594944. Its totient is φ = 35423568000.

The previous prime is 91109200003. The next prime is 91109200067. The reversal of 91109200010 is 1000290119.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 298886 + ... + 521105.

It is an arithmetic number, because the mean of its divisors is an integer number (5269268592).

Almost surely, 2^91109200010 is an apocalyptic number.

91109200010 is a deficient number, since it is larger than the sum of its proper divisors (77507394934).

91109200010 is a wasteful number, since it uses less digits than its factorization.

91109200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 820310.

The product of its (nonzero) digits is 162, while the sum is 23.

Adding to 91109200010 its reverse (1000290119), we get a palindrome (92109490129).

The spelling of 91109200010 in words is "ninety-one billion, one hundred nine million, two hundred thousand, ten".