9091910010100 has 36 divisors (see below), whose sum is σ = 19730140315200. Its totient is φ = 3636635784160.

The previous prime is 9091910009989. The next prime is 9091910010109. The reversal of 9091910010100 is 10100191909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9091910010109) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1273461 + ... + 4450339.

It is an arithmetic number, because the mean of its divisors is an integer number (548059453200).

Almost surely, 2^{9091910010100} is an apocalyptic number.

It is an amenable number.

9091910010100 is an abundant number, since it is smaller than the sum of its proper divisors (10638230305100).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9091910010100 is a wasteful number, since it uses less digits than its factorization.

9091910010100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3205512 (or 3205505 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 31.

The spelling of 9091910010100 in words is "nine trillion, ninety-one billion, nine hundred ten million, ten thousand, one hundred".