7122797797 has 4 divisors (see below), whose sum is σ = 7239565036. Its totient is φ = 7006030560.

The previous prime is 7122797791. The next prime is 7122797807. The reversal of 7122797797 is 7977972217.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1479633156 + 5643164641 = 38466^2 + 75121^2 .

It is not a de Polignac number, because 7122797797 - 2³ = 7122797789 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 (7122797791) 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, 58383528 + ... + 58383649.

It is an arithmetic number, because the mean of its divisors is an integer number (1809891259).

Almost surely, 2^7122797797 is an apocalyptic number.

It is an amenable number.

7122797797 is a deficient number, since it is larger than the sum of its proper divisors (116767239).

7122797797 is a wasteful number, since it uses less digits than its factorization.

7122797797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116767238.

The product of its digits is 5445468, while the sum is 58.

The square root of 7122797797 is about 84396.6693477888. The cubic root of 7122797797 is about 1924.0522953680.

The spelling of 7122797797 in words is "seven billion, one hundred twenty-two million, seven hundred ninety-seven thousand, seven hundred ninety-seven".