42878307728718 has 64 divisors (see below), whose sum is σ = 118797043069440. Its totient is φ = 11137222785600.

The previous prime is 42878307728713. The next prime is 42878307728759. The reversal of 42878307728718 is 81782770387824.

42878307728718 is a `hidden beast` number, since 4 + 28 + 7 + 8 + 307 + 7 + 287 + 18 = 666.

It is a super-3 number, since 3×42878307728718³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878307728713) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5156117503 + ... + 5156125818.

It is an arithmetic number, because the mean of its divisors is an integer number (1856203797960).

Almost surely, 2^{42878307728718} is an apocalyptic number.

42878307728718 is an abundant number, since it is smaller than the sum of its proper divisors (75918735340722).

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

42878307728718 is a wasteful number, since it uses less digits than its factorization.

42878307728718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10312243350 (or 10312243344 counting only the distinct ones).

The product of its (nonzero) digits is 472055808, while the sum is 72.

The spelling of 42878307728718 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred seven million, seven hundred twenty-eight thousand, seven hundred eighteen".