19350907198 has 16 divisors (see below), whose sum is σ = 34316880480. Its totient is φ = 8007271776.

The previous prime is 19350907187. The next prime is 19350907211. The reversal of 19350907198 is 89170905391.

It is a happy number.

It is a super-2 number, since 2×19350907198² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23830761 + ... + 23831572.

It is an arithmetic number, because the mean of its divisors is an integer number (2144805030).

Almost surely, 2^19350907198 is an apocalyptic number.

19350907198 is a deficient number, since it is larger than the sum of its proper divisors (14965973282).

19350907198 is a wasteful number, since it uses less digits than its factorization.

19350907198 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47662371.

The product of its (nonzero) digits is 612360, while the sum is 52.

The spelling of 19350907198 in words is "nineteen billion, three hundred fifty million, nine hundred seven thousand, one hundred ninety-eight".