65334938449 has 27 divisors (see below), whose sum is σ = 75855099369. Its totient is φ = 56223315720.

The previous prime is 65334938443. The next prime is 65334938467. The reversal of 65334938449 is 94483943356.

It is a happy number.

The square root of 65334938449 is 255607.

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

It is not a de Polignac number, because 65334938449 - 2⁹ = 65334937937 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 65334938393 and 65334938402.

It is not an unprimeable number, because it can be changed into a prime (65334938443) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 53421252 + ... + 53422474.

Almost surely, 2^65334938449 is an apocalyptic number.

65334938449 is the 255607-th square number.

65334938449 is the 127804-th centered octagonal number.

It is an amenable number.

65334938449 is a deficient number, since it is larger than the sum of its proper divisors (10520160920).

65334938449 is an equidigital number, since it uses as much as digits as its factorization.

65334938449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2506 (or 1253 counting only the distinct ones).

The product of its digits is 33592320, while the sum is 58.

The spelling of 65334938449 in words is "sixty-five billion, three hundred thirty-four million, nine hundred thirty-eight thousand, four hundred forty-nine".