7129222993 has 4 divisors (see below), whose sum is σ = 7139030080. Its totient is φ = 7119415908.

The previous prime is 7129222987. The next prime is 7129223021. The reversal of 7129222993 is 3992229217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7129222993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7129222963) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4902453 + ... + 4903906.

It is an arithmetic number, because the mean of its divisors is an integer number (1784757520).

Almost surely, 2^7129222993 is an apocalyptic number.

It is an amenable number.

7129222993 is a deficient number, since it is larger than the sum of its proper divisors (9807087).

7129222993 is an equidigital number, since it uses as much as digits as its factorization.

7129222993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9807086.

The product of its digits is 244944, while the sum is 46.

The square root of 7129222993 is about 84434.7262268316. The cubic root of 7129222993 is about 1924.6306588197.

The spelling of 7129222993 in words is "seven billion, one hundred twenty-nine million, two hundred twenty-two thousand, nine hundred ninety-three".