91875225191 has 16 divisors (see below), whose sum is σ = 94637809728. Its totient is φ = 89138688000.

The previous prime is 91875225163. The next prime is 91875225199. The reversal of 91875225191 is 19152257819.

It is a cyclic number.

It is not a de Polignac number, because 91875225191 - 2²² = 91871030887 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 (91875225199) 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, 6473495 + ... + 6487671.

It is an arithmetic number, because the mean of its divisors is an integer number (5914863108).

Almost surely, 2^91875225191 is an apocalyptic number.

91875225191 is a deficient number, since it is larger than the sum of its proper divisors (2762584537).

91875225191 is a wasteful number, since it uses less digits than its factorization.

91875225191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15082.

The product of its digits is 453600, while the sum is 50.

The spelling of 91875225191 in words is "ninety-one billion, eight hundred seventy-five million, two hundred twenty-five thousand, one hundred ninety-one".