198134977011 has 8 divisors (see below), whose sum is σ = 265862644944. Its totient is φ = 131248646880.

The previous prime is 198134977003. The next prime is 198134977031. The reversal of 198134977011 is 110779431891.

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

It is not a de Polignac number, because 198134977011 - 2³ = 198134977003 is a prime.

It is a super-3 number, since 3×198134977011³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (198134977031) 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, 210333900 + ... + 210334841.

It is an arithmetic number, because the mean of its divisors is an integer number (33232830618).

Almost surely, 2^198134977011 is an apocalyptic number.

198134977011 is a deficient number, since it is larger than the sum of its proper divisors (67727667933).

198134977011 is a wasteful number, since it uses less digits than its factorization.

198134977011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 420668901.

The product of its (nonzero) digits is 381024, while the sum is 51.

The spelling of 198134977011 in words is "one hundred ninety-eight billion, one hundred thirty-four million, nine hundred seventy-seven thousand, eleven".