197275545306 has 128 divisors (see below), whose sum is σ = 535552819200. Its totient is φ = 52598747520.

The previous prime is 197275545293. The next prime is 197275545307. The reversal of 197275545306 is 603545572791.

It is a happy number.

197275545306 is a `hidden beast` number, since 1 + 97 + 2 + 7 + 5 + 545 + 3 + 0 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (197275545307) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 79735 + ... + 633173.

It is an arithmetic number, because the mean of its divisors is an integer number (4184006400).

Almost surely, 2^197275545306 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 197275545306, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267776409600).

197275545306 is an abundant number, since it is smaller than the sum of its proper divisors (338277273894).

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

197275545306 is a wasteful number, since it uses less digits than its factorization.

197275545306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 553521 (or 553515 counting only the distinct ones).

The product of its (nonzero) digits is 7938000, while the sum is 54.

The spelling of 197275545306 in words is "one hundred ninety-seven billion, two hundred seventy-five million, five hundred forty-five thousand, three hundred six".