197987339874 has 8 divisors (see below), whose sum is σ = 395974679760. Its totient is φ = 65995779956.

The previous prime is 197987339831. The next prime is 197987339881. The reversal of 197987339874 is 478933789791.

197987339874 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

197987339874 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 197987339796 and 197987339805.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16498944984 + ... + 16498944995.

It is an arithmetic number, because the mean of its divisors is an integer number (49496834970).

Almost surely, 2^197987339874 is an apocalyptic number.

197987339874 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

197987339874 is a wasteful number, since it uses less digits than its factorization.

197987339874 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32997889984.

The product of its digits is 576108288, while the sum is 75.

The spelling of 197987339874 in words is "one hundred ninety-seven billion, nine hundred eighty-seven million, three hundred thirty-nine thousand, eight hundred seventy-four".