204048149761 has 4 divisors (see below), whose sum is σ = 205537552452. Its totient is φ = 202558747072.

The previous prime is 204048149759. The next prime is 204048149771. The reversal of 204048149761 is 167941840402.

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

It can be written as a sum of positive squares in 2 ways, for example, as 86789160000 + 117258989761 = 294600^2 + 342431^2 .

It is a cyclic number.

It is not a de Polignac number, because 204048149761 - 2¹ = 204048149759 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (204048149771) 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, 744701140 + ... + 744701413.

It is an arithmetic number, because the mean of its divisors is an integer number (51384388113).

Almost surely, 2^204048149761 is an apocalyptic number.

It is an amenable number.

204048149761 is a deficient number, since it is larger than the sum of its proper divisors (1489402691).

204048149761 is a wasteful number, since it uses less digits than its factorization.

204048149761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1489402690.

The product of its (nonzero) digits is 387072, while the sum is 46.

The spelling of 204048149761 in words is "two hundred four billion, forty-eight million, one hundred forty-nine thousand, seven hundred sixty-one".