42728537615 has 8 divisors (see below), whose sum is σ = 53503560288. Its totient is φ = 32696620000.

The previous prime is 42728537591. The next prime is 42728537623. The reversal of 42728537615 is 51673582724.

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

It is not a de Polignac number, because 42728537615 - 2⁸ = 42728537359 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 185776136 + ... + 185776365.

It is an arithmetic number, because the mean of its divisors is an integer number (6687945036).

Almost surely, 2^42728537615 is an apocalyptic number.

42728537615 is a deficient number, since it is larger than the sum of its proper divisors (10775022673).

42728537615 is a wasteful number, since it uses less digits than its factorization.

42728537615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 371552529.

The product of its digits is 2822400, while the sum is 50.

The spelling of 42728537615 in words is "forty-two billion, seven hundred twenty-eight million, five hundred thirty-seven thousand, six hundred fifteen".