42523405312 has 88 divisors (see below), whose sum is σ = 87899817600. Its totient is φ = 20540129280.

The previous prime is 42523405303. The next prime is 42523405333. The reversal of 42523405312 is 21350432524.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33298818 + ... + 33300094.

Almost surely, 2^42523405312 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 42523405312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (43949908800).

42523405312 is an abundant number, since it is smaller than the sum of its proper divisors (45376412288).

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

42523405312 is a wasteful number, since it uses less digits than its factorization.

42523405312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2377 (or 2359 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 42523405312 its reverse (21350432524), we get a palindrome (63873837836).

The spelling of 42523405312 in words is "forty-two billion, five hundred twenty-three million, four hundred five thousand, three hundred twelve".