204740269605 has 24 divisors (see below), whose sum is σ = 355285109088. Its totient is φ = 109071125856.

The previous prime is 204740269577. The next prime is 204740269621. The reversal of 204740269605 is 506962047402.

It is not a de Polignac number, because 204740269605 - 2¹⁵ = 204740236837 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2536587 + ... + 2616056.

It is an arithmetic number, because the mean of its divisors is an integer number (14803546212).

Almost surely, 2^204740269605 is an apocalyptic number.

It is an amenable number.

204740269605 is a deficient number, since it is larger than the sum of its proper divisors (150544839483).

204740269605 is a wasteful number, since it uses less digits than its factorization.

204740269605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5153537 (or 5153534 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 45.

The spelling of 204740269605 in words is "two hundred four billion, seven hundred forty million, two hundred sixty-nine thousand, six hundred five".