97591728171 has 8 divisors (see below), whose sum is σ = 148711204864. Its totient is φ = 55766701800.

The previous prime is 97591728163. The next prime is 97591728187. The reversal of 97591728171 is 17182719579.

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

It is not a de Polignac number, because 97591728171 - 2³ = 97591728163 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97591728131) 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, 2323612555 + ... + 2323612596.

It is an arithmetic number, because the mean of its divisors is an integer number (18588900608).

Almost surely, 2^97591728171 is an apocalyptic number.

97591728171 is a deficient number, since it is larger than the sum of its proper divisors (51119476693).

97591728171 is a wasteful number, since it uses less digits than its factorization.

97591728171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4647225161.

The product of its digits is 2222640, while the sum is 57.

The spelling of 97591728171 in words is "ninety-seven billion, five hundred ninety-one million, seven hundred twenty-eight thousand, one hundred seventy-one".