42878277158279 has 4 divisors (see below), whose sum is σ = 43294571111376. Its totient is φ = 42461983205184.

The previous prime is 42878277158261. The next prime is 42878277158377. The reversal of 42878277158279 is 97285177287824.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 42878277158279 - 2⁴⁴ = 25286091113863 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 (42878277155279) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208146976394 + ... + 208146976599.

It is an arithmetic number, because the mean of its divisors is an integer number (10823642777844).

Almost surely, 2^{42878277158279} is an apocalyptic number.

42878277158279 is a deficient number, since it is larger than the sum of its proper divisors (416293953097).

42878277158279 is a wasteful number, since it uses less digits than its factorization.

42878277158279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416293953096.

The product of its digits is 1770209280, while the sum is 77.

The spelling of 42878277158279 in words is "forty-two trillion, eight hundred seventy-eight billion, two hundred seventy-seven million, one hundred fifty-eight thousand, two hundred seventy-nine".