42878561031066 has 16 divisors (see below), whose sum is σ = 85761577440000. Its totient is φ = 14292111114048.

The previous prime is 42878561030959. The next prime is 42878561031077. The reversal of 42878561031066 is 66013016587824.

It is a junction number, because it is equal to n+sod(n) for n = 42878561030997 and 42878561031015.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185515626 + ... + 185746613.

It is an arithmetic number, because the mean of its divisors is an integer number (5360098590000).

Almost surely, 2^{42878561031066} is an apocalyptic number.

42878561031066 is an abundant number, since it is smaller than the sum of its proper divisors (42883016408934).

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

42878561031066 is a wasteful number, since it uses less digits than its factorization.

42878561031066 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371281493.

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 42878561031066 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred sixty-one million, thirty-one thousand, sixty-six".