42881573205856 has 48 divisors (see below), whose sum is σ = 105254770602240. Its totient is φ = 16707106442880.

The previous prime is 42881573205853. The next prime is 42881573205893. The reversal of 42881573205856 is 65850237518824.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42881573205853) by changing a digit.

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, 8701615476 + ... + 8701620403.

It is an arithmetic number, because the mean of its divisors is an integer number (2192807720880).

Almost surely, 2^{42881573205856} is an apocalyptic number.

It is an amenable number.

42881573205856 is an abundant number, since it is smaller than the sum of its proper divisors (62373197396384).

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

42881573205856 is a wasteful number, since it uses less digits than its factorization.

42881573205856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17403235907 (or 17403235899 counting only the distinct ones).

The product of its (nonzero) digits is 129024000, while the sum is 64.

The spelling of 42881573205856 in words is "forty-two trillion, eight hundred eighty-one billion, five hundred seventy-three million, two hundred five thousand, eight hundred fifty-six".