445527545543 has 4 divisors (see below), whose sum is σ = 471735048240. Its totient is φ = 419320042848.

The previous prime is 445527545539. The next prime is 445527545549. The reversal of 445527545543 is 345545725544.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 445527545543 - 2² = 445527545539 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (445527545549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13103751323 + ... + 13103751356.

It is an arithmetic number, because the mean of its divisors is an integer number (117933762060).

Almost surely, 2^445527545543 is an apocalyptic number.

445527545543 is a deficient number, since it is larger than the sum of its proper divisors (26207502697).

445527545543 is a wasteful number, since it uses less digits than its factorization.

445527545543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26207502696.

The product of its digits is 33600000, while the sum is 53.

The spelling of 445527545543 in words is "four hundred forty-five billion, five hundred twenty-seven million, five hundred forty-five thousand, five hundred forty-three".