65803879679 has 4 divisors (see below), whose sum is σ = 65812959576. Its totient is φ = 65794799784.

The previous prime is 65803879663. The next prime is 65803879699. The reversal of 65803879679 is 97697830856.

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 65803879679 - 2⁴ = 65803879663 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 (65803879639) 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, 4529069 + ... + 4543574.

It is an arithmetic number, because the mean of its divisors is an integer number (16453239894).

Almost surely, 2^65803879679 is an apocalyptic number.

65803879679 is a deficient number, since it is larger than the sum of its proper divisors (9079897).

65803879679 is an equidigital number, since it uses as much as digits as its factorization.

65803879679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9079896.

The product of its (nonzero) digits is 137168640, while the sum is 68.

The spelling of 65803879679 in words is "sixty-five billion, eight hundred three million, eight hundred seventy-nine thousand, six hundred seventy-nine".