65873328964 has 27 divisors (see below), whose sum is σ = 116082467991. Its totient is φ = 32708495520.

The previous prime is 65873328943. The next prime is 65873329013. The reversal of 65873328964 is 46982337856.

The square root of 65873328964 is 256658.

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

It can be written as a sum of positive squares in 4 ways, for example, as 51873706564 + 13999622400 = 227758^2 + 118320^2 .

It is a super-2 number, since 2×65873328964² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 92909842 + ... + 92910550.

Almost surely, 2^65873328964 is an apocalyptic number.

65873328964 is the 256658-th square number.

It is an amenable number.

65873328964 is a deficient number, since it is larger than the sum of its proper divisors (50209139027).

65873328964 is an frugal number, since it uses more digits than its factorization.

65873328964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1784 (or 892 counting only the distinct ones).

The product of its digits is 52254720, while the sum is 61.

The spelling of 65873328964 in words is "sixty-five billion, eight hundred seventy-three million, three hundred twenty-eight thousand, nine hundred sixty-four".