65258789764 has 81 divisors (see below), whose sum is σ = 135272048709. Its totient is φ = 27466844160.

The previous prime is 65258789741. The next prime is 65258789777. The reversal of 65258789764 is 46798785256.

The square root of 65258789764 is 255458.

It is a perfect power (a square), and thus also a powerful number.

65258789764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 64247040900 + 1011748864 = 253470^2 + 31808^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 65258789764.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 253925124 + ... + 253925380.

Almost surely, 2^65258789764 is an apocalyptic number.

65258789764 is the 255458-th square number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65258789764

65258789764 is an abundant number, since it is smaller than the sum of its proper divisors (70013258945).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65258789764 is an equidigital number, since it uses as much as digits as its factorization.

65258789764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 337 counting only the distinct ones).

The product of its digits is 203212800, while the sum is 67.

The spelling of 65258789764 in words is "sixty-five billion, two hundred fifty-eight million, seven hundred eighty-nine thousand, seven hundred sixty-four".