43485906563 has 4 divisors (see below), whose sum is σ = 47439170808. Its totient is φ = 39532642320.

The previous prime is 43485906557. The next prime is 43485906571. The reversal of 43485906563 is 36560958434.

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 43485906563 - 2²⁰ = 43484857987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43485906523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1976632106 + ... + 1976632127.

It is an arithmetic number, because the mean of its divisors is an integer number (11859792702).

Almost surely, 2^43485906563 is an apocalyptic number.

43485906563 is a deficient number, since it is larger than the sum of its proper divisors (3953264245).

43485906563 is a wasteful number, since it uses less digits than its factorization.

43485906563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3953264244.

The product of its (nonzero) digits is 9331200, while the sum is 53.

The spelling of 43485906563 in words is "forty-three billion, four hundred eighty-five million, nine hundred six thousand, five hundred sixty-three".