42443121443280 has 80 divisors (see below), whose sum is σ = 132609689769984. Its totient is φ = 11229046295040.

The previous prime is 42443121443263. The next prime is 42443121443363. The reversal of 42443121443280 is 8234412134424.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 696214951 + ... + 696275910.

Almost surely, 2^{42443121443280} is an apocalyptic number.

42443121443280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

42443121443280 is an abundant number, since it is smaller than the sum of its proper divisors (90166568326704).

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

42443121443280 is a wasteful number, since it uses less digits than its factorization.

42443121443280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1392491004 (or 1392490998 counting only the distinct ones).

The product of its (nonzero) digits is 589824, while the sum is 42.

The spelling of 42443121443280 in words is "forty-two trillion, four hundred forty-three billion, one hundred twenty-one million, four hundred forty-three thousand, two hundred eighty".