197845343545 has 16 divisors (see below), whose sum is σ = 252696112128. Its totient is φ = 148185967360.

The previous prime is 197845343537. The next prime is 197845343569. The reversal of 197845343545 is 545343548791.

It is not a de Polignac number, because 197845343545 - 2³ = 197845343537 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 197845343545.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6076939 + ... + 6109408.

It is an arithmetic number, because the mean of its divisors is an integer number (15793507008).

Almost surely, 2^197845343545 is an apocalyptic number.

It is an amenable number.

197845343545 is a deficient number, since it is larger than the sum of its proper divisors (54850768583).

197845343545 is a wasteful number, since it uses less digits than its factorization.

197845343545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12186560.

The product of its digits is 36288000, while the sum is 58.

The spelling of 197845343545 in words is "one hundred ninety-seven billion, eight hundred forty-five million, three hundred forty-three thousand, five hundred forty-five".