42539212800 has 1008 divisors, whose sum is σ = 182956169520. Its totient is φ = 9661317120.

The previous prime is 42539212799. The next prime is 42539212847. The reversal of 42539212800 is 821293524.

It is a happy number.

42539212800 is a `hidden beast` number, since 42 + 539 + 2 + 1 + 2 + 80 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (1008).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 270950322 + ... + 270950478.

Almost surely, 2^42539212800 is an apocalyptic number.

42539212800 is a gapful number since it is divisible by the number (40) 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 42539212800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (91478084760).

42539212800 is an abundant number, since it is smaller than the sum of its proper divisors (140416956720).

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

42539212800 is a wasteful number, since it uses less digits than its factorization.

42539212800 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 216 (or 174 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 36.

The spelling of 42539212800 in words is "forty-two billion, five hundred thirty-nine million, two hundred twelve thousand, eight hundred".