204409265679359 has 16 divisors (see below), whose sum is σ = 233215020857952. Its totient is φ = 177485025788928.

The previous prime is 204409265679347. The next prime is 204409265679431. The reversal of 204409265679359 is 953976562904402.

It is a de Polignac number, because none of the positive numbers 2^k-204409265679359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 204409265679292 and 204409265679301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (204409265669359) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263425709 + ... + 264200534.

It is an arithmetic number, because the mean of its divisors is an integer number (14575938803622).

Almost surely, 2^{204409265679359} is an apocalyptic number.

204409265679359 is a deficient number, since it is larger than the sum of its proper divisors (28805755178593).

204409265679359 is a wasteful number, since it uses less digits than its factorization.

204409265679359 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 527628026.

The product of its (nonzero) digits is 881798400, while the sum is 71.

The spelling of 204409265679359 in words is "two hundred four trillion, four hundred nine billion, two hundred sixty-five million, six hundred seventy-nine thousand, three hundred fifty-nine".