42531646624 has 48 divisors (see below), whose sum is σ = 84702578688. Its totient is φ = 21020643072.

The previous prime is 42531646583. The next prime is 42531646627. The reversal of 42531646624 is 42664613524.

It is not an unprimeable number, because it can be changed into a prime (42531646627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1824289 + ... + 1847455.

It is an arithmetic number, because the mean of its divisors is an integer number (1764637056).

Almost surely, 2^42531646624 is an apocalyptic number.

It is an amenable number.

42531646624 is a deficient number, since it is larger than the sum of its proper divisors (42170932064).

42531646624 is a wasteful number, since it uses less digits than its factorization.

42531646624 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23837 (or 23829 counting only the distinct ones).

The product of its digits is 829440, while the sum is 43.

The spelling of 42531646624 in words is "forty-two billion, five hundred thirty-one million, six hundred forty-six thousand, six hundred twenty-four".