198383578641 has 36 divisors (see below), whose sum is σ = 304585265712. Its totient is φ = 124400916864.

The previous prime is 198383578633. The next prime is 198383578643. The reversal of 198383578641 is 146875383891.

198383578641 is a `hidden beast` number, since 1 + 98 + 383 + 57 + 86 + 41 = 666.

It is not a de Polignac number, because 198383578641 - 2³ = 198383578633 is a prime.

It is not an unprimeable number, because it can be changed into a prime (198383578643) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 4459390 + ... + 4503656.

Almost surely, 2^198383578641 is an apocalyptic number.

It is an amenable number.

198383578641 is a deficient number, since it is larger than the sum of its proper divisors (106201687071).

198383578641 is a wasteful number, since it uses less digits than its factorization.

198383578641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46030 (or 46010 counting only the distinct ones).

The product of its digits is 34836480, while the sum is 63.

The spelling of 198383578641 in words is "one hundred ninety-eight billion, three hundred eighty-three million, five hundred seventy-eight thousand, six hundred forty-one".