7205921716079 has 4 divisors (see below), whose sum is σ = 7205931058176. Its totient is φ = 7205912373984.

The previous prime is 7205921716061. The next prime is 7205921716109. The reversal of 7205921716079 is 9706171295027.

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 7205921716079 - 2²⁰ = 7205920667503 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 (7205921716879) 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, 3398474 + ... + 5095239.

It is an arithmetic number, because the mean of its divisors is an integer number (1801482764544).

Almost surely, 2^{7205921716079} is an apocalyptic number.

7205921716079 is a deficient number, since it is larger than the sum of its proper divisors (9342097).

7205921716079 is an equidigital number, since it uses as much as digits as its factorization.

7205921716079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9342096.

The product of its (nonzero) digits is 3333960, while the sum is 56.

The spelling of 7205921716079 in words is "seven trillion, two hundred five billion, nine hundred twenty-one million, seven hundred sixteen thousand, seventy-nine".