42040315512 has 192 divisors, whose sum is σ = 131026896000. Its totient is φ = 12062380032.

The previous prime is 42040315511. The next prime is 42040315573. The reversal of 42040315512 is 21551304024.

42040315512 is a `hidden beast` number, since 42 + 0 + 40 + 31 + 551 + 2 = 666.

42040315512 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42040315511) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1722289 + ... + 1746527.

It is an arithmetic number, because the mean of its divisors is an integer number (682431750).

Almost surely, 2^42040315512 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 42040315512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (65513448000).

42040315512 is an abundant number, since it is smaller than the sum of its proper divisors (88986580488).

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

42040315512 is a wasteful number, since it uses less digits than its factorization.

42040315512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24390 (or 24383 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

Adding to 42040315512 its reverse (21551304024), we get a palindrome (63591619536).

The spelling of 42040315512 in words is "forty-two billion, forty million, three hundred fifteen thousand, five hundred twelve".