204783744047 has 4 divisors (see below), whose sum is σ = 216829846656. Its totient is φ = 192737641440.

The previous prime is 204783744023. The next prime is 204783744049. The reversal of 204783744047 is 740447387402.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 204783744047 - 2¹⁴ = 204783727663 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204783743986 and 204783744004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204783744049) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6023051279 + ... + 6023051312.

It is an arithmetic number, because the mean of its divisors is an integer number (54207461664).

Almost surely, 2^204783744047 is an apocalyptic number.

204783744047 is a deficient number, since it is larger than the sum of its proper divisors (12046102609).

204783744047 is a wasteful number, since it uses less digits than its factorization.

204783744047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12046102608.

The product of its (nonzero) digits is 4214784, while the sum is 50.

The spelling of 204783744047 in words is "two hundred four billion, seven hundred eighty-three million, seven hundred forty-four thousand, forty-seven".