74197410091 has 24 divisors (see below), whose sum is σ = 86558521920. Its totient is φ = 63415919952.

The previous prime is 74197410083. The next prime is 74197410101. The reversal of 74197410091 is 19001479147.

It is not a de Polignac number, because 74197410091 - 2³ = 74197410083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74197410011) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 34050040 + ... + 34052218.

It is an arithmetic number, because the mean of its divisors is an integer number (3606605080).

Almost surely, 2^74197410091 is an apocalyptic number.

74197410091 is a deficient number, since it is larger than the sum of its proper divisors (12361111829).

74197410091 is a wasteful number, since it uses less digits than its factorization.

74197410091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3863 (or 3856 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 43.

The spelling of 74197410091 in words is "seventy-four billion, one hundred ninety-seven million, four hundred ten thousand, ninety-one".