197860680618 has 16 divisors (see below), whose sum is σ = 399351833760. Its totient is φ = 65348481456.

The previous prime is 197860680613. The next prime is 197860680671. The reversal of 197860680618 is 816086068791.

It is not an unprimeable number, because it can be changed into a prime (197860680613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151268980 + ... + 151270287.

It is an arithmetic number, because the mean of its divisors is an integer number (24959489610).

Almost surely, 2^197860680618 is an apocalyptic number.

197860680618 is an abundant number, since it is smaller than the sum of its proper divisors (201491153142).

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

197860680618 is a wasteful number, since it uses less digits than its factorization.

197860680618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302539381.

The product of its (nonzero) digits is 6967296, while the sum is 60.

The spelling of 197860680618 in words is "one hundred ninety-seven billion, eight hundred sixty million, six hundred eighty thousand, six hundred eighteen".