42028251065 has 16 divisors (see below), whose sum is σ = 51012825600. Its totient is φ = 33238060992.

The previous prime is 42028251019. The next prime is 42028251151. The reversal of 42028251065 is 56015282024.

42028251065 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 42028251065 - 2¹⁸ = 42027988921 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 151424 + ... + 327086.

It is an arithmetic number, because the mean of its divisors is an integer number (3188301600).

Almost surely, 2^42028251065 is an apocalyptic number.

It is an amenable number.

42028251065 is a deficient number, since it is larger than the sum of its proper divisors (8984574535).

42028251065 is a wasteful number, since it uses less digits than its factorization.

42028251065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176216.

The product of its (nonzero) digits is 38400, while the sum is 35.

The spelling of 42028251065 in words is "forty-two billion, twenty-eight million, two hundred fifty-one thousand, sixty-five".