204323352451405 has 8 divisors (see below), whose sum is σ = 267477843209184. Its totient is φ = 148598801782800.

The previous prime is 204323352451397. The next prime is 204323352451457. The reversal of 204323352451405 is 504154253323402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 204323352451405 - 2³ = 204323352451397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1857485022231 + ... + 1857485022340.

It is an arithmetic number, because the mean of its divisors is an integer number (33434730401148).

Almost surely, 2^{204323352451405} is an apocalyptic number.

It is an amenable number.

204323352451405 is a deficient number, since it is larger than the sum of its proper divisors (63154490757779).

204323352451405 is a wasteful number, since it uses less digits than its factorization.

204323352451405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3714970044587.

The product of its (nonzero) digits is 1728000, while the sum is 43.

The spelling of 204323352451405 in words is "two hundred four trillion, three hundred twenty-three billion, three hundred fifty-two million, four hundred fifty-one thousand, four hundred five".