447815685385 has 8 divisors (see below), whose sum is σ = 538819518600. Its totient is φ = 357292084224.

The previous prime is 447815685337. The next prime is 447815685409. The reversal of 447815685385 is 583586518744.

It can be written as a sum of positive squares in 4 ways, for example, as 146040151104 + 301775534281 = 382152^2 + 549341^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 447815685385 - 2¹⁵ = 447815652617 is a prime.

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, 120055960 + ... + 120059689.

It is an arithmetic number, because the mean of its divisors is an integer number (67352439825).

Almost surely, 2^447815685385 is an apocalyptic number.

It is an amenable number.

447815685385 is a deficient number, since it is larger than the sum of its proper divisors (91003833215).

447815685385 is a wasteful number, since it uses less digits than its factorization.

447815685385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240116027.

The product of its digits is 129024000, while the sum is 64.

The spelling of 447815685385 in words is "four hundred forty-seven billion, eight hundred fifteen million, six hundred eighty-five thousand, three hundred eighty-five".