42878330011872 has 120 divisors (see below), whose sum is σ = 126627232363632. Its totient is φ = 14233470336000.

The previous prime is 42878330011859. The next prime is 42878330011873. The reversal of 42878330011872 is 27811003387824.

42878330011872 is a `hidden beast` number, since 4 + 2 + 87 + 83 + 300 + 1 + 187 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878330011873) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33696004 + ... + 34945347.

Almost surely, 2^{42878330011872} is an apocalyptic number.

It is an amenable number.

42878330011872 is an abundant number, since it is smaller than the sum of its proper divisors (83748902351760).

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

42878330011872 is a wasteful number, since it uses less digits than its factorization.

42878330011872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68641614 (or 68641597 counting only the distinct ones).

The product of its (nonzero) digits is 3612672, while the sum is 54.

The spelling of 42878330011872 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred thirty million, eleven thousand, eight hundred seventy-two".