42878275265861 has 8 divisors (see below), whose sum is σ = 49015011014400. Its totient is φ = 36744356480688.

The previous prime is 42878275265849. The next prime is 42878275265921. The reversal of 42878275265861 is 16856257287824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42878275265861 - 2¹⁰ = 42878275264837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42878275265461) 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, 704208221 + ... + 704269106.

It is an arithmetic number, because the mean of its divisors is an integer number (6126876376800).

Almost surely, 2^{42878275265861} is an apocalyptic number.

It is an amenable number.

42878275265861 is a deficient number, since it is larger than the sum of its proper divisors (6136735748539).

42878275265861 is a wasteful number, since it uses less digits than its factorization.

42878275265861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1408481683.

The product of its digits is 722534400, while the sum is 71.

The spelling of 42878275265861 in words is "forty-two trillion, eight hundred seventy-eight billion, two hundred seventy-five million, two hundred sixty-five thousand, eight hundred sixty-one".