198142405451619 has 8 divisors (see below), whose sum is σ = 273299869588560. Its totient is φ = 127539939141216.

The previous prime is 198142405451567. The next prime is 198142405451629. The reversal of 198142405451619 is 916154504241891.

It is a happy number.

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

It is not a de Polignac number, because 198142405451619 - 2¹⁶ = 198142405386083 is a prime.

It is a super-3 number, since 3×198142405451619³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (198142405451629) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138749456532 + ... + 1138749456705.

It is an arithmetic number, because the mean of its divisors is an integer number (34162483698570).

Almost surely, 2^{198142405451619} is an apocalyptic number.

198142405451619 is a deficient number, since it is larger than the sum of its proper divisors (75157464136941).

198142405451619 is a wasteful number, since it uses less digits than its factorization.

198142405451619 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2277498913269.

The product of its (nonzero) digits is 12441600, while the sum is 60.

The spelling of 198142405451619 in words is "one hundred ninety-eight trillion, one hundred forty-two billion, four hundred five million, four hundred fifty-one thousand, six hundred nineteen".