42878276871255 has 144 divisors (see below), whose sum is σ = 89697241520640. Its totient is φ = 19269263130048.

The previous prime is 42878276871223. The next prime is 42878276871277. The reversal of 42878276871255 is 55217867287824.

42878276871255 is a `hidden beast` number, since 4 + 28 + 7 + 8 + 276 + 87 + 1 + 255 = 666.

It is not a de Polignac number, because 42878276871255 - 2⁵ = 42878276871223 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 11966062 + ... + 15130868.

It is an arithmetic number, because the mean of its divisors is an integer number (622897510560).

Almost surely, 2^{42878276871255} is an apocalyptic number.

42878276871255 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

42878276871255 is an abundant number, since it is smaller than the sum of its proper divisors (46818964649385).

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

42878276871255 is an frugal number, since it uses more digits than its factorization.

42878276871255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3164902 (or 3164881 counting only the distinct ones).

The product of its digits is 842956800, while the sum is 72.

The spelling of 42878276871255 in words is "forty-two trillion, eight hundred seventy-eight billion, two hundred seventy-six million, eight hundred seventy-one thousand, two hundred fifty-five".