198361147543 has 24 divisors (see below), whose sum is σ = 225697712688. Its totient is φ = 173278562688.

The previous prime is 198361147519. The next prime is 198361147547. The reversal of 198361147543 is 345741163891.

It is not a de Polignac number, because 198361147543 - 2¹³ = 198361139351 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198361147547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4421955 + ... + 4466587.

It is an arithmetic number, because the mean of its divisors is an integer number (9404071362).

Almost surely, 2^198361147543 is an apocalyptic number.

198361147543 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

198361147543 is a deficient number, since it is larger than the sum of its proper divisors (27336565145).

198361147543 is a wasteful number, since it uses less digits than its factorization.

198361147543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45631 (or 45612 counting only the distinct ones).

The product of its digits is 2177280, while the sum is 52.

The spelling of 198361147543 in words is "one hundred ninety-eight billion, three hundred sixty-one million, one hundred forty-seven thousand, five hundred forty-three".