83571004091 has 8 divisors (see below), whose sum is σ = 87209216160. Its totient is φ = 79933182912.

The previous prime is 83571004079. The next prime is 83571004109. The reversal of 83571004091 is 19040017538.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-83571004091 is a prime.

It is a super-2 number, since 2×83571004091² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83571004291) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 391301 + ... + 565913.

It is an arithmetic number, because the mean of its divisors is an integer number (10901152020).

Almost surely, 2^83571004091 is an apocalyptic number.

83571004091 is a deficient number, since it is larger than the sum of its proper divisors (3638212069).

83571004091 is a wasteful number, since it uses less digits than its factorization.

83571004091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195445.

The product of its (nonzero) digits is 30240, while the sum is 38.

The spelling of 83571004091 in words is "eighty-three billion, five hundred seventy-one million, four thousand, ninety-one".