42678298449 has 12 divisors (see below), whose sum is σ = 61741719936. Its totient is φ = 28408219512.

The previous prime is 42678298433. The next prime is 42678298451. The reversal of 42678298449 is 94489287624.

42678298449 is a `hidden beast` number, since 4 + 26 + 7 + 82 + 98 + 449 = 666.

It is not a de Polignac number, because 42678298449 - 2⁴ = 42678298433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42678298549) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3658809 + ... + 3670454.

It is an arithmetic number, because the mean of its divisors is an integer number (5145143328).

Almost surely, 2^42678298449 is an apocalyptic number.

It is an amenable number.

42678298449 is a deficient number, since it is larger than the sum of its proper divisors (19063421487).

42678298449 is a wasteful number, since it uses less digits than its factorization.

42678298449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7329916 (or 7329913 counting only the distinct ones).

The product of its digits is 55738368, while the sum is 63.

The spelling of 42678298449 in words is "forty-two billion, six hundred seventy-eight million, two hundred ninety-eight thousand, four hundred forty-nine".