42255844341420 has 192 divisors, whose sum is σ = 123763698938880. Its totient is φ = 10751864217600.

The previous prime is 42255844341343. The next prime is 42255844341427. The reversal of 42255844341420 is 2414344855224.

It is a self number, because there is not a number n which added to its sum of digits gives 42255844341420.

It is not an unprimeable number, because it can be changed into a prime (42255844341427) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1166980276 + ... + 1167016484.

It is an arithmetic number, because the mean of its divisors is an integer number (644602598640).

Almost surely, 2^{42255844341420} 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 42255844341420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61881849469440).

42255844341420 is an abundant number, since it is smaller than the sum of its proper divisors (81507854597460).

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

42255844341420 is a wasteful number, since it uses less digits than its factorization.

42255844341420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38296 (or 38294 counting only the distinct ones).

The product of its (nonzero) digits is 4915200, while the sum is 48.

The spelling of 42255844341420 in words is "forty-two trillion, two hundred fifty-five billion, eight hundred forty-four million, three hundred forty-one thousand, four hundred twenty".