42718281339 has 4 divisors (see below), whose sum is σ = 56957708456. Its totient is φ = 28478854224.

The previous prime is 42718281337. The next prime is 42718281367. The reversal of 42718281339 is 93318281724.

It is a happy number.

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

It is not a de Polignac number, because 42718281339 - 2¹ = 42718281337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42718281337) 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, 7119713554 + ... + 7119713559.

It is an arithmetic number, because the mean of its divisors is an integer number (14239427114).

Almost surely, 2^42718281339 is an apocalyptic number.

42718281339 is a deficient number, since it is larger than the sum of its proper divisors (14239427117).

42718281339 is a wasteful number, since it uses less digits than its factorization.

42718281339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14239427116.

The product of its digits is 580608, while the sum is 48.

The spelling of 42718281339 in words is "forty-two billion, seven hundred eighteen million, two hundred eighty-one thousand, three hundred thirty-nine".