42045311532 has 96 divisors (see below), whose sum is σ = 115883192320. Its totient is φ = 11610812160.

The previous prime is 42045311479. The next prime is 42045311617. The reversal of 42045311532 is 23511354024.

It is a self number, because there is not a number n which added to its sum of digits gives 42045311532.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2148978 + ... + 2168454.

Almost surely, 2^42045311532 is an apocalyptic number.

42045311532 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42045311532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57941596160).

42045311532 is an abundant number, since it is smaller than the sum of its proper divisors (73837880788).

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

42045311532 is a wasteful number, since it uses less digits than its factorization.

42045311532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20351 (or 20349 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 42045311532 its reverse (23511354024), we get a palindrome (65556665556).

It can be divided in two parts, 420453 and 11532, that added together give a triangular number (431985 = T₉₂₉).

The spelling of 42045311532 in words is "forty-two billion, forty-five million, three hundred eleven thousand, five hundred thirty-two".