197466887793 has 16 divisors (see below), whose sum is σ = 302072757120. Its totient is φ = 112399159296.

The previous prime is 197466887791. The next prime is 197466887851. The reversal of 197466887793 is 397788664791.

It is not a de Polignac number, because 197466887793 - 2¹ = 197466887791 is a prime.

It is not an unprimeable number, because it can be changed into a prime (197466887791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18288738 + ... + 18299531.

It is an arithmetic number, because the mean of its divisors is an integer number (18879547320).

Almost surely, 2^197466887793 is an apocalyptic number.

It is an amenable number.

197466887793 is a deficient number, since it is larger than the sum of its proper divisors (104605869327).

197466887793 is a wasteful number, since it uses less digits than its factorization.

197466887793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36588536.

The product of its digits is 768144384, while the sum is 75.

The spelling of 197466887793 in words is "one hundred ninety-seven billion, four hundred sixty-six million, eight hundred eighty-seven thousand, seven hundred ninety-three".