198773450798 has 8 divisors (see below), whose sum is σ = 321095574408. Its totient is φ = 91741592664.

The previous prime is 198773450789. The next prime is 198773450807. The reversal of 198773450798 is 897054377891.

It is an interprime number because it is at equal distance from previous prime (198773450789) and next prime (198773450807).

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

It is a super-4 number, since 4×198773450798⁴ (a number of 46 digits) contains 4444 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3822566336 + ... + 3822566387.

It is an arithmetic number, because the mean of its divisors is an integer number (40136946801).

Almost surely, 2^198773450798 is an apocalyptic number.

198773450798 is a deficient number, since it is larger than the sum of its proper divisors (122322123610).

198773450798 is a wasteful number, since it uses less digits than its factorization.

198773450798 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7645132738.

The product of its (nonzero) digits is 106686720, while the sum is 68.

The spelling of 198773450798 in words is "one hundred ninety-eight billion, seven hundred seventy-three million, four hundred fifty thousand, seven hundred ninety-eight".