198538110974 has 8 divisors (see below), whose sum is σ = 340351047408. Its totient is φ = 85087761840.

The previous prime is 198538110961. The next prime is 198538110989. The reversal of 198538110974 is 479011835891.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7090646807 + ... + 7090646834.

It is an arithmetic number, because the mean of its divisors is an integer number (42543880926).

Almost surely, 2^198538110974 is an apocalyptic number.

198538110974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

198538110974 is a deficient number, since it is larger than the sum of its proper divisors (141812936434).

198538110974 is a wasteful number, since it uses less digits than its factorization.

198538110974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14181293650.

The product of its (nonzero) digits is 2177280, while the sum is 56.

The spelling of 198538110974 in words is "one hundred ninety-eight billion, five hundred thirty-eight million, one hundred ten thousand, nine hundred seventy-four".