204104738973 has 4 divisors (see below), whose sum is σ = 272139651968. Its totient is φ = 136069825980.

The previous prime is 204104738951. The next prime is 204104739011. The reversal of 204104738973 is 379837401402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 204104738973 - 2¹² = 204104734877 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204104737973) 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, 34017456493 + ... + 34017456498.

It is an arithmetic number, because the mean of its divisors is an integer number (68034912992).

Almost surely, 2^204104738973 is an apocalyptic number.

It is an amenable number.

204104738973 is a deficient number, since it is larger than the sum of its proper divisors (68034912995).

204104738973 is an equidigital number, since it uses as much as digits as its factorization.

204104738973 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68034912994.

The product of its (nonzero) digits is 1016064, while the sum is 48.

The spelling of 204104738973 in words is "two hundred four billion, one hundred four million, seven hundred thirty-eight thousand, nine hundred seventy-three".