65219424539 has 4 divisors (see below), whose sum is σ = 65222551080. Its totient is φ = 65216298000.

The previous prime is 65219424503. The next prime is 65219424541. The reversal of 65219424539 is 93542491256.

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 65219424539 - 2²⁸ = 64950989083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (65219424559) 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, 1531769 + ... + 1573770.

It is an arithmetic number, because the mean of its divisors is an integer number (16305637770).

Almost surely, 2^65219424539 is an apocalyptic number.

65219424539 is a deficient number, since it is larger than the sum of its proper divisors (3126541).

65219424539 is a wasteful number, since it uses less digits than its factorization.

65219424539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3126540.

The product of its digits is 2332800, while the sum is 50.

The spelling of 65219424539 in words is "sixty-five billion, two hundred nineteen million, four hundred twenty-four thousand, five hundred thirty-nine".