100091819091 has 16 divisors (see below), whose sum is σ = 145720867968. Its totient is φ = 60606388800.

The previous prime is 100091819081. The next prime is 100091819119. The reversal of 100091819091 is 190918190001.

It is not a de Polignac number, because 100091819091 - 2¹⁷ = 100091688019 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100091819041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1346245 + ... + 1418646.

It is an arithmetic number, because the mean of its divisors is an integer number (9107554248).

Almost surely, 2^100091819091 is an apocalyptic number.

100091819091 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

100091819091 is a deficient number, since it is larger than the sum of its proper divisors (45629048877).

100091819091 is a wasteful number, since it uses less digits than its factorization.

100091819091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2766002.

The product of its (nonzero) digits is 5832, while the sum is 39.

The spelling of 100091819091 in words is "one hundred billion, ninety-one million, eight hundred nineteen thousand, ninety-one".