42056563544 has 32 divisors (see below), whose sum is σ = 79193268000. Its totient is φ = 20938436352.

The previous prime is 42056563537. The next prime is 42056563559. The reversal of 42056563544 is 44536565024.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 42056563495 and 42056563504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6748622 + ... + 6754850.

It is an arithmetic number, because the mean of its divisors is an integer number (2474789625).

Almost surely, 2^42056563544 is an apocalyptic number.

It is an amenable number.

42056563544 is a deficient number, since it is larger than the sum of its proper divisors (37136704456).

42056563544 is a wasteful number, since it uses less digits than its factorization.

42056563544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9707 (or 9703 counting only the distinct ones).

The product of its (nonzero) digits is 1728000, while the sum is 44.

The spelling of 42056563544 in words is "forty-two billion, fifty-six million, five hundred sixty-three thousand, five hundred forty-four".