100091838191 has 4 divisors (see below), whose sum is σ = 100705898712. Its totient is φ = 99477777672.

The previous prime is 100091838167. The next prime is 100091838277. The reversal of 100091838191 is 191838190001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100091838191 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100091838131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 307030016 + ... + 307030341.

It is an arithmetic number, because the mean of its divisors is an integer number (25176474678).

Almost surely, 2^100091838191 is an apocalyptic number.

100091838191 is a deficient number, since it is larger than the sum of its proper divisors (614060521).

100091838191 is an equidigital number, since it uses as much as digits as its factorization.

100091838191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614060520.

The product of its (nonzero) digits is 15552, while the sum is 41.

The spelling of 100091838191 in words is "one hundred billion, ninety-one million, eight hundred thirty-eight thousand, one hundred ninety-one".