198491707069 has 8 divisors (see below), whose sum is σ = 209520648000. Its totient is φ = 187520967072.

The previous prime is 198491707013. The next prime is 198491707087. The reversal of 198491707069 is 960707194891.

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

It is a cyclic number.

It is not a de Polignac number, because 198491707069 - 2¹¹ = 198491705021 is a prime.

It is a super-2 number, since 2×198491707069² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 198491706998 and 198491707016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (198491707769) 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, 14543224 + ... + 14556865.

It is an arithmetic number, because the mean of its divisors is an integer number (26190081000).

Almost surely, 2^198491707069 is an apocalyptic number.

198491707069 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

198491707069 is a deficient number, since it is larger than the sum of its proper divisors (11028940931).

198491707069 is a wasteful number, since it uses less digits than its factorization.

198491707069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29100467.

The product of its (nonzero) digits is 6858432, while the sum is 61.

The spelling of 198491707069 in words is "one hundred ninety-eight billion, four hundred ninety-one million, seven hundred seven thousand, sixty-nine".