42728226587 has 8 divisors (see below), whose sum is σ = 43274110896. Its totient is φ = 42185285632.

The previous prime is 42728226539. The next prime is 42728226599. The reversal of 42728226587 is 78562282724.

It is a happy number.

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 42728226587 - 2⁶ = 42728226523 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42728226487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 706613 + ... + 764694.

It is an arithmetic number, because the mean of its divisors is an integer number (5409263862).

Almost surely, 2^42728226587 is an apocalyptic number.

42728226587 is a deficient number, since it is larger than the sum of its proper divisors (545884309).

42728226587 is a wasteful number, since it uses less digits than its factorization.

42728226587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1471677.

The product of its digits is 6021120, while the sum is 53.

The spelling of 42728226587 in words is "forty-two billion, seven hundred twenty-eight million, two hundred twenty-six thousand, five hundred eighty-seven".