204652054643 has 4 divisors (see below), whose sum is σ = 205270339128. Its totient is φ = 204033770160.

The previous prime is 204652054631. The next prime is 204652054679. The reversal of 204652054643 is 346450256402.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 346450256402 = 2 ⋅173225128201.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204652054643 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 204652054643.

It is not an unprimeable number, because it can be changed into a prime (204652054843) 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, 309141746 + ... + 309142407.

It is an arithmetic number, because the mean of its divisors is an integer number (51317584782).

Almost surely, 2^204652054643 is an apocalyptic number.

204652054643 is a deficient number, since it is larger than the sum of its proper divisors (618284485).

204652054643 is an equidigital number, since it uses as much as digits as its factorization.

204652054643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 618284484.

The product of its (nonzero) digits is 691200, while the sum is 41.

The spelling of 204652054643 in words is "two hundred four billion, six hundred fifty-two million, fifty-four thousand, six hundred forty-three".