197675180388 has 72 divisors (see below), whose sum is σ = 571109954688. Its totient is φ = 56473843968.

The previous prime is 197675180377. The next prime is 197675180389. The reversal of 197675180388 is 883081576791.

197675180388 is a `hidden beast` number, since 1 + 9 + 7 + 6 + 75 + 180 + 388 = 666.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (197675180389) 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, 3851020 + ... + 3902012.

It is an arithmetic number, because the mean of its divisors is an integer number (7932082704).

Almost surely, 2^197675180388 is an apocalyptic number.

197675180388 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

197675180388 is an abundant number, since it is smaller than the sum of its proper divisors (373434774300).

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

197675180388 is a wasteful number, since it uses less digits than its factorization.

197675180388 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66393 (or 66388 counting only the distinct ones).

The product of its (nonzero) digits is 20321280, while the sum is 63.

The spelling of 197675180388 in words is "one hundred ninety-seven billion, six hundred seventy-five million, one hundred eighty thousand, three hundred eighty-eight".