42531552544 has 96 divisors (see below), whose sum is σ = 95560819200. Its totient is φ = 18459512832.

The previous prime is 42531552541. The next prime is 42531552571. The reversal of 42531552544 is 44525513524.

It is a junction number, because it is equal to n+sod(n) for n = 42531552497 and 42531552506.

It is not an unprimeable number, because it can be changed into a prime (42531552541) 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 15 ways as a sum of consecutive naturals, for example, 12890607 + ... + 12893905.

It is an arithmetic number, because the mean of its divisors is an integer number (995425200).

Almost surely, 2^42531552544 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42531552544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47780409600).

42531552544 is an abundant number, since it is smaller than the sum of its proper divisors (53029266656).

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

42531552544 is a wasteful number, since it uses less digits than its factorization.

42531552544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5162 (or 5154 counting only the distinct ones).

The product of its digits is 480000, while the sum is 40.

The spelling of 42531552544 in words is "forty-two billion, five hundred thirty-one million, five hundred fifty-two thousand, five hundred forty-four".