97173999099 has 24 divisors (see below), whose sum is σ = 143849876352. Its totient is φ = 63174487680.

The previous prime is 97173999089. The next prime is 97173999113. The reversal of 97173999099 is 99099937179.

It is not a de Polignac number, because 97173999099 - 2¹¹ = 97173997051 is a prime.

It is a super-2 number, since 2×97173999099² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97173999089) 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, 788694 + ... + 903540.

It is an arithmetic number, because the mean of its divisors is an integer number (5993744848).

Almost surely, 2^97173999099 is an apocalyptic number.

97173999099 is a deficient number, since it is larger than the sum of its proper divisors (46675877253).

97173999099 is a wasteful number, since it uses less digits than its factorization.

97173999099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117187 (or 117184 counting only the distinct ones).

The product of its (nonzero) digits is 78121827, while the sum is 72.

The spelling of 97173999099 in words is "ninety-seven billion, one hundred seventy-three million, nine hundred ninety-nine thousand, ninety-nine".