42878210266782 has 192 divisors, whose sum is σ = 110694652323840. Its totient is φ = 11850723532800.

The previous prime is 42878210266741. The next prime is 42878210266831. The reversal of 42878210266782 is 28766201287824.

42878210266782 is a `hidden beast` number, since 4 + 2 + 87 + 8 + 210 + 266 + 7 + 82 = 666.

It is a super-2 number, since 2×42878210266782² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21555538 + ... + 23460554.

It is an arithmetic number, because the mean of its divisors is an integer number (576534647520).

Almost surely, 2^{42878210266782} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 42878210266782, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (55347326161920).

42878210266782 is an abundant number, since it is smaller than the sum of its proper divisors (67816442057058).

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

42878210266782 is a wasteful number, since it uses less digits than its factorization.

42878210266782 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1905279 (or 1905276 counting only the distinct ones).

The product of its (nonzero) digits is 57802752, while the sum is 63.

The spelling of 42878210266782 in words is "forty-two trillion, eight hundred seventy-eight billion, two hundred ten million, two hundred sixty-six thousand, seven hundred eighty-two".