42881852321825 has 12 divisors (see below), whose sum is σ = 58007451141168. Its totient is φ = 31186801688400.

The previous prime is 42881852321813. The next prime is 42881852321831. The reversal of 42881852321825 is 52812325818824.

It is not a de Polignac number, because 42881852321825 - 2¹⁶ = 42881852256289 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 77967003947 + ... + 77967004496.

It is an arithmetic number, because the mean of its divisors is an integer number (4833954261764).

Almost surely, 2^{42881852321825} is an apocalyptic number.

It is an amenable number.

42881852321825 is a deficient number, since it is larger than the sum of its proper divisors (15125598819343).

42881852321825 is a wasteful number, since it uses less digits than its factorization.

42881852321825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155934008464 (or 155934008459 counting only the distinct ones).

The product of its digits is 19660800, while the sum is 59.

The spelling of 42881852321825 in words is "forty-two trillion, eight hundred eighty-one billion, eight hundred fifty-two million, three hundred twenty-one thousand, eight hundred twenty-five".