42257683720 has 128 divisors (see below), whose sum is σ = 111750716160. Its totient is φ = 14077670400.

The previous prime is 42257683687. The next prime is 42257683747. The reversal of 42257683720 is 2738675224.

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, 9083395 + ... + 9088045.

It is an arithmetic number, because the mean of its divisors is an integer number (873052470).

Almost surely, 2^42257683720 is an apocalyptic number.

42257683720 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 42257683720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55875358080).

42257683720 is an abundant number, since it is smaller than the sum of its proper divisors (69493032440).

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

42257683720 is a wasteful number, since it uses less digits than its factorization.

42257683720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5583 (or 5579 counting only the distinct ones).

The product of its (nonzero) digits is 1128960, while the sum is 46.

The spelling of 42257683720 in words is "forty-two billion, two hundred fifty-seven million, six hundred eighty-three thousand, seven hundred twenty".