65493809279 has 8 divisors (see below), whose sum is σ = 65794014720. Its totient is φ = 65194277536.

The previous prime is 65493809263. The next prime is 65493809281. The reversal of 65493809279 is 97290839456.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 65493809279 - 2⁴ = 65493809263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65493809219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26969 + ... + 362925.

It is an arithmetic number, because the mean of its divisors is an integer number (8224251840).

Almost surely, 2^65493809279 is an apocalyptic number.

65493809279 is a deficient number, since it is larger than the sum of its proper divisors (300205441).

65493809279 is a wasteful number, since it uses less digits than its factorization.

65493809279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336849.

The product of its (nonzero) digits is 29393280, while the sum is 62.

The spelling of 65493809279 in words is "sixty-five billion, four hundred ninety-three million, eight hundred nine thousand, two hundred seventy-nine".