198455619488 has 48 divisors (see below), whose sum is σ = 446556930624. Its totient is φ = 85046353920.

The previous prime is 198455619463. The next prime is 198455619497. The reversal of 198455619488 is 884916554891.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4710131 + ... + 4752077.

It is an arithmetic number, because the mean of its divisors is an integer number (9303269388).

Almost surely, 2^198455619488 is an apocalyptic number.

It is an amenable number.

198455619488 is an abundant number, since it is smaller than the sum of its proper divisors (248101311136).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

198455619488 is a wasteful number, since it uses less digits than its factorization.

198455619488 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63085 (or 63077 counting only the distinct ones).

The product of its digits is 99532800, while the sum is 68.

The spelling of 198455619488 in words is "one hundred ninety-eight billion, four hundred fifty-five million, six hundred nineteen thousand, four hundred eighty-eight".