42878535238012 has 48 divisors (see below), whose sum is σ = 75935508042240. Its totient is φ = 21184242512832.

The previous prime is 42878535237997. The next prime is 42878535238103. The reversal of 42878535238012 is 21083253587824.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798173689 + ... + 798227407.

It is an arithmetic number, because the mean of its divisors is an integer number (1581989750880).

Almost surely, 2^{42878535238012} is an apocalyptic number.

It is an amenable number.

42878535238012 is a deficient number, since it is larger than the sum of its proper divisors (33056972804228).

42878535238012 is a wasteful number, since it uses less digits than its factorization.

42878535238012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60970 (or 60968 counting only the distinct ones).

The product of its (nonzero) digits is 25804800, while the sum is 58.

The spelling of 42878535238012 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred thirty-five million, two hundred thirty-eight thousand, twelve".