91103621107 has 8 divisors (see below), whose sum is σ = 91367761536. Its totient is φ = 90839849472.

The previous prime is 91103621093. The next prime is 91103621131. The reversal of 91103621107 is 70112630119.

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

It is not a de Polignac number, because 91103621107 - 2¹⁵ = 91103588339 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91104621107) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 406473 + ... + 589429.

It is an arithmetic number, because the mean of its divisors is an integer number (11420970192).

Almost surely, 2^91103621107 is an apocalyptic number.

91103621107 is a deficient number, since it is larger than the sum of its proper divisors (264140429).

91103621107 is a wasteful number, since it uses less digits than its factorization.

91103621107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184397.

The product of its (nonzero) digits is 2268, while the sum is 31.

The spelling of 91103621107 in words is "ninety-one billion, one hundred three million, six hundred twenty-one thousand, one hundred seven".