198745367843 has 8 divisors (see below), whose sum is σ = 219866835456. Its totient is φ = 178132851400.

The previous prime is 198745367837. The next prime is 198745367851. The reversal of 198745367843 is 348763547891.

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

It is not a de Polignac number, because 198745367843 - 2¹⁶ = 198745302307 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 198745367843.

It is not an unprimeable number, because it can be changed into a prime (198745367803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127236971 + ... + 127238532.

It is an arithmetic number, because the mean of its divisors is an integer number (27483354432).

Almost surely, 2^198745367843 is an apocalyptic number.

198745367843 is a deficient number, since it is larger than the sum of its proper divisors (21121467613).

198745367843 is a wasteful number, since it uses less digits than its factorization.

198745367843 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254475585.

The product of its digits is 121927680, while the sum is 65.

The spelling of 198745367843 in words is "one hundred ninety-eight billion, seven hundred forty-five million, three hundred sixty-seven thousand, eight hundred forty-three".