42056842919028 has 384 divisors, whose sum is σ = 119789946372096. Its totient is φ = 11233451174400.

The previous prime is 42056842919017. The next prime is 42056842919033. The reversal of 42056842919028 is 82091924865024.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 4431229363 + ... + 4431238853.

It is an arithmetic number, because the mean of its divisors is an integer number (311952985344).

Almost surely, 2^{42056842919028} 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 42056842919028, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (59894973186048).

42056842919028 is an abundant number, since it is smaller than the sum of its proper divisors (77733103453068).

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

42056842919028 is a wasteful number, since it uses less digits than its factorization.

42056842919028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10123 (or 10121 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 60.

The spelling of 42056842919028 in words is "forty-two trillion, fifty-six billion, eight hundred forty-two million, nine hundred nineteen thousand, twenty-eight".