7147172819 has 2 divisors, whose sum is σ = 7147172820. Its totient is φ = 7147172818.

The previous prime is 7147172797. The next prime is 7147172833. The reversal of 7147172819 is 9182717417.

It is a strong prime.

It is an emirp because it is prime and its reverse (9182717417) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7147172819 - 2²⁰ = 7146124243 is a prime.

It is a super-2 number, since 2×7147172819² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7147172869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3573586409 + 3573586410.

It is an arithmetic number, because the mean of its divisors is an integer number (3573586410).

Almost surely, 2^7147172819 is an apocalyptic number.

7147172819 is a deficient number, since it is larger than the sum of its proper divisors (1).

7147172819 is an equidigital number, since it uses as much as digits as its factorization.

7147172819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 47.

The square root of 7147172819 is about 84540.9535018384. The cubic root of 7147172819 is about 1926.2445715938.

The spelling of 7147172819 in words is "seven billion, one hundred forty-seven million, one hundred seventy-two thousand, eight hundred nineteen".