42878516505168 has 40 divisors (see below), whose sum is σ = 113763271272928. Its totient is φ = 13906545892992.

The previous prime is 42878516505163. The next prime is 42878516505193. The reversal of 42878516505168 is 86150561587824.

It is a junction number, because it is equal to n+sod(n) for n = 42878516505099 and 42878516505108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878516505163) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12071652646 + ... + 12071656197.

Almost surely, 2^{42878516505168} is an apocalyptic number.

42878516505168 is a gapful number since it is divisible by the number (48) formed by its first and last digit.

It is an amenable number.

42878516505168 is an abundant number, since it is smaller than the sum of its proper divisors (70884754767760).

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

42878516505168 is a wasteful number, since it uses less digits than its factorization.

42878516505168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24143308891 (or 24143308885 counting only the distinct ones).

The product of its (nonzero) digits is 129024000, while the sum is 66.

The spelling of 42878516505168 in words is "forty-two trillion, eight hundred seventy-eight billion, five hundred sixteen million, five hundred five thousand, one hundred sixty-eight".