198812970719 has 8 divisors (see below), whose sum is σ = 217082460240. Its totient is φ = 180576078400.

The previous prime is 198812970701. The next prime is 198812970739. The reversal of 198812970719 is 917079218891.

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 198812970719 - 2⁸ = 198812970463 is a prime.

It is a super-2 number, since 2×198812970719² (a number of 23 digits) contains 22 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 (198812970739) 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, 8136542 + ... + 8160939.

It is an arithmetic number, because the mean of its divisors is an integer number (27135307530).

Almost surely, 2^198812970719 is an apocalyptic number.

198812970719 is a deficient number, since it is larger than the sum of its proper divisors (18269489521).

198812970719 is a wasteful number, since it uses less digits than its factorization.

198812970719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16298601.

The product of its (nonzero) digits is 4572288, while the sum is 62.

The spelling of 198812970719 in words is "one hundred ninety-eight billion, eight hundred twelve million, nine hundred seventy thousand, seven hundred nineteen".