447857853565548 has 12 divisors (see below), whose sum is σ = 1045001658319640. Its totient is φ = 149285951188512.

The previous prime is 447857853565537. The next prime is 447857853565579. The reversal of 447857853565548 is 845565358758744.

It is a tau number, because it is divible by the number of its divisors (12).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18660743898553 + ... + 18660743898576.

Almost surely, 2^{447857853565548} is an apocalyptic number.

It is an amenable number.

447857853565548 is an abundant number, since it is smaller than the sum of its proper divisors (597143804754092).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

447857853565548 is a wasteful number, since it uses less digits than its factorization.

447857853565548 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37321487797136 (or 37321487797134 counting only the distinct ones).

The product of its digits is 90316800000, while the sum is 84.

The spelling of 447857853565548 in words is "four hundred forty-seven trillion, eight hundred fifty-seven billion, eight hundred fifty-three million, five hundred sixty-five thousand, five hundred forty-eight".