197366411728 has 80 divisors (see below), whose sum is σ = 413640846720. Its totient is φ = 90982476288.

The previous prime is 197366411717. The next prime is 197366411729. The reversal of 197366411728 is 827114663791.

197366411728 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (197366411729) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1389178 + ... + 1524646.

It is an arithmetic number, because the mean of its divisors is an integer number (5170510584).

Almost surely, 2^197366411728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197366411728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (206820423360).

197366411728 is an abundant number, since it is smaller than the sum of its proper divisors (216274434992).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

197366411728 is a wasteful number, since it uses less digits than its factorization.

197366411728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135644 (or 135638 counting only the distinct ones).

The product of its digits is 3048192, while the sum is 55.

The spelling of 197366411728 in words is "one hundred ninety-seven billion, three hundred sixty-six million, four hundred eleven thousand, seven hundred twenty-eight".