42878306082512 has 40 divisors (see below), whose sum is σ = 85764201073152. Its totient is φ = 20745731433600.

The previous prime is 42878306082511. The next prime is 42878306082607. The reversal of 42878306082512 is 21528060387824.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878306082511) 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, 1793837 + ... + 9432627.

Almost surely, 2^{42878306082512} is an apocalyptic number.

It is an amenable number.

42878306082512 is an abundant number, since it is smaller than the sum of its proper divisors (42885894990640).

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

42878306082512 is a wasteful number, since it uses less digits than its factorization.

42878306082512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7650147 (or 7650141 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 56.

The spelling of 42878306082512 in words is "forty-two trillion, eight hundred seventy-eight billion, three hundred six million, eighty-two thousand, five hundred twelve".