204462104563 has 4 divisors (see below), whose sum is σ = 204470223808. Its totient is φ = 204453985320.

The previous prime is 204462104453. The next prime is 204462104579. The reversal of 204462104563 is 365401264402.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-204462104563 is a prime.

It is a super-2 number, since 2×204462104563² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204462102563) 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, 4021731 + ... + 4072252.

It is an arithmetic number, because the mean of its divisors is an integer number (51117555952).

Almost surely, 2^204462104563 is an apocalyptic number.

204462104563 is a deficient number, since it is larger than the sum of its proper divisors (8119245).

204462104563 is an equidigital number, since it uses as much as digits as its factorization.

204462104563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8119244.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 204462104563 its reverse (365401264402), we get a palindrome (569863368965).

The spelling of 204462104563 in words is "two hundred four billion, four hundred sixty-two million, one hundred four thousand, five hundred sixty-three".