197313911138898 has 32 divisors (see below), whose sum is σ = 440747251156800. Its totient is φ = 65430519752448.

The previous prime is 197313911138843. The next prime is 197313911138933. The reversal of 197313911138898 is 898831119313791.

197313911138898 is a `hidden beast` number, since 1 + 9 + 7 + 31 + 391 + 113 + 8 + 8 + 98 = 666.

197313911138898 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9466210608 + ... + 9466231451.

It is an arithmetic number, because the mean of its divisors is an integer number (13773351598650).

Almost surely, 2^{197313911138898} is an apocalyptic number.

197313911138898 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

197313911138898 is an abundant number, since it is smaller than the sum of its proper divisors (243433340017902).

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

197313911138898 is a wasteful number, since it uses less digits than its factorization.

197313911138898 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18932442263 (or 18932442257 counting only the distinct ones).

The product of its digits is 70543872, while the sum is 72.

The spelling of 197313911138898 in words is "one hundred ninety-seven trillion, three hundred thirteen billion, nine hundred eleven million, one hundred thirty-eight thousand, eight hundred ninety-eight".