198142487383 has 4 divisors (see below), whose sum is σ = 198151913800. Its totient is φ = 198133060968.

The previous prime is 198142487321. The next prime is 198142487423. The reversal of 198142487383 is 383784241891.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 383784241891 = 4219 ⋅90965689.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-198142487383 is a prime.

It is a super-3 number, since 3×198142487383³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198142487783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4681608 + ... + 4723741.

It is an arithmetic number, because the mean of its divisors is an integer number (49537978450).

Almost surely, 2^198142487383 is an apocalyptic number.

198142487383 is a deficient number, since it is larger than the sum of its proper divisors (9426417).

198142487383 is an equidigital number, since it uses as much as digits as its factorization.

198142487383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9426416.

The product of its digits is 9289728, while the sum is 58.

The spelling of 198142487383 in words is "one hundred ninety-eight billion, one hundred forty-two million, four hundred eighty-seven thousand, three hundred eighty-three".