65805234747 has 16 divisors (see below), whose sum is σ = 100328297472. Its totient is φ = 37582871040.

The previous prime is 65805234739. The next prime is 65805234757. The reversal of 65805234747 is 74743250856.

It is a happy number.

65805234747 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 65805234747 - 2³ = 65805234739 is a prime.

It is a super-3 number, since 3×65805234747³ (a number of 33 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 65805234747.

It is not an unprimeable number, because it can be changed into a prime (65805234727) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 798118 + ... + 876699.

It is an arithmetic number, because the mean of its divisors is an integer number (6270518592).

Almost surely, 2^65805234747 is an apocalyptic number.

65805234747 is a deficient number, since it is larger than the sum of its proper divisors (34523062725).

65805234747 is a wasteful number, since it uses less digits than its factorization.

65805234747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1676698.

The product of its (nonzero) digits is 5644800, while the sum is 51.

The spelling of 65805234747 in words is "sixty-five billion, eight hundred five million, two hundred thirty-four thousand, seven hundred forty-seven".