42457381884 has 108 divisors (see below), whose sum is σ = 117685841728. Its totient is φ = 12890188800.

The previous prime is 42457381871. The next prime is 42457381913. The reversal of 42457381884 is 48818375424.

42457381884 is a `hidden beast` number, since 4 + 2 + 457 + 3 + 8 + 188 + 4 = 666.

It is a super-2 number, since 2×42457381884² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 42457381884.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 256704 + ... + 388344.

Almost surely, 2^42457381884 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 42457381884, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (58842920864).

42457381884 is an abundant number, since it is smaller than the sum of its proper divisors (75228459844).

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

42457381884 is a wasteful number, since it uses less digits than its factorization.

42457381884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131716 (or 131694 counting only the distinct ones).

The product of its digits is 6881280, while the sum is 54.

The spelling of 42457381884 in words is "forty-two billion, four hundred fifty-seven million, three hundred eighty-one thousand, eight hundred eighty-four".