9091919100910 has 64 divisors (see below), whose sum is σ = 16655112369792. Its totient is φ = 3573087952896.

The previous prime is 9091919100871. The next prime is 9091919100961. The reversal of 9091919100910 is 190019191909.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 65811127 + ... + 65949133.

It is an arithmetic number, because the mean of its divisors is an integer number (260236130778).

Almost surely, 2^{9091919100910} is an apocalyptic number.

9091919100910 is a deficient number, since it is larger than the sum of its proper divisors (7563193268882).

9091919100910 is a wasteful number, since it uses less digits than its factorization.

9091919100910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138637.

The product of its (nonzero) digits is 59049, while the sum is 49.

The spelling of 9091919100910 in words is "nine trillion, ninety-one billion, nine hundred nineteen million, one hundred thousand, nine hundred ten".