42878330020066 has 8 divisors (see below), whose sum is σ = 64584372603564. Its totient is φ = 21350205818880.

The previous prime is 42878330020051. The next prime is 42878330020087. The reversal of 42878330020066 is 66002003387824.

It is a happy number.

42878330020066 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 40430153457841 + 2448176562225 = 6358471^2 + 1564665^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44479594975 + ... + 44479595938.

Almost surely, 2^{42878330020066} is an apocalyptic number.

42878330020066 is a deficient number, since it is larger than the sum of its proper divisors (21706042583498).

42878330020066 is a wasteful number, since it uses less digits than its factorization.

42878330020066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88959191156.

The product of its (nonzero) digits is 2322432, while the sum is 49.

The spelling of 42878330020066 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred thirty million, twenty thousand, sixty-six".