42431543280 has 640 divisors, whose sum is σ = 177360076800. Its totient is φ = 9107997696.

The previous prime is 42431543269. The next prime is 42431543281. The reversal of 42431543280 is 8234513424.

42431543280 is a `hidden beast` number, since 4 + 2 + 4 + 31 + 543 + 2 + 80 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42431543281) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 36483979 + ... + 36485141.

It is an arithmetic number, because the mean of its divisors is an integer number (277125120).

Almost surely, 2^42431543280 is an apocalyptic number.

42431543280 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 42431543280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88680038400).

42431543280 is an abundant number, since it is smaller than the sum of its proper divisors (134928533520).

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

42431543280 is a wasteful number, since it uses less digits than its factorization.

42431543280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1338 (or 1326 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 36.

The spelling of 42431543280 in words is "forty-two billion, four hundred thirty-one million, five hundred forty-three thousand, two hundred eighty".