204724993677 has 12 divisors (see below), whose sum is σ = 274196412864. Its totient is φ = 135871197240.

The previous prime is 204724993667. The next prime is 204724993751. The reversal of 204724993677 is 776399427402.

It is not a de Polignac number, because 204724993677 - 2³⁴ = 187545124493 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 204724993677.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204724993667) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 536949 + ... + 835322.

It is an arithmetic number, because the mean of its divisors is an integer number (22849701072).

Almost surely, 2^204724993677 is an apocalyptic number.

It is an amenable number.

204724993677 is a deficient number, since it is larger than the sum of its proper divisors (69471419187).

204724993677 is an equidigital number, since it uses as much as digits as its factorization.

204724993677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1372720 (or 1372497 counting only the distinct ones).

The product of its (nonzero) digits is 32006016, while the sum is 60.

The spelling of 204724993677 in words is "two hundred four billion, seven hundred twenty-four million, nine hundred ninety-three thousand, six hundred seventy-seven".