204019238464 has 56 divisors (see below), whose sum is σ = 437676503360. Its totient is φ = 94028760576.

The previous prime is 204019238431. The next prime is 204019238473. The reversal of 204019238464 is 464832910402.

It is a self number, because there is not a number n which added to its sum of digits gives 204019238464.

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, 2222292 + ... + 2312275.

Almost surely, 2^204019238464 is an apocalyptic number.

It is an amenable number.

204019238464 is an abundant number, since it is smaller than the sum of its proper divisors (233657264896).

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

204019238464 is a wasteful number, since it uses less digits than its factorization.

204019238464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4534635 (or 4534625 counting only the distinct ones).

The product of its (nonzero) digits is 331776, while the sum is 43.

The spelling of 204019238464 in words is "two hundred four billion, nineteen million, two hundred thirty-eight thousand, four hundred sixty-four".