65237428559 has 4 divisors (see below), whose sum is σ = 65675263800. Its totient is φ = 64799593320.

The previous prime is 65237428507. The next prime is 65237428573. The reversal of 65237428559 is 95582473256.

It is a happy number.

65237428559 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 65237428559 - 2⁸ = 65237428303 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65237428589) 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, 218917397 + ... + 218917694.

It is an arithmetic number, because the mean of its divisors is an integer number (16418815950).

Almost surely, 2^65237428559 is an apocalyptic number.

65237428559 is a deficient number, since it is larger than the sum of its proper divisors (437835241).

65237428559 is a wasteful number, since it uses less digits than its factorization.

65237428559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437835240.

The product of its digits is 18144000, while the sum is 56.

The spelling of 65237428559 in words is "sixty-five billion, two hundred thirty-seven million, four hundred twenty-eight thousand, five hundred fifty-nine".