7149446669 has 2 divisors, whose sum is σ = 7149446670. Its totient is φ = 7149446668.

The previous prime is 7149446663. The next prime is 7149446671. The reversal of 7149446669 is 9666449417.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5552485225 + 1596961444 = 74515^2 + 39962^2 .

It is a cyclic number.

It is not a de Polignac number, because 7149446669 - 2²⁸ = 6881011213 is a prime.

It is a super-2 number, since 2×7149446669² (a number of 21 digits) contains 22 as substring.

Together with 7149446671, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7149446663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3574723334 + 3574723335.

It is an arithmetic number, because the mean of its divisors is an integer number (3574723335).

Almost surely, 2^7149446669 is an apocalyptic number.

It is an amenable number.

7149446669 is a deficient number, since it is larger than the sum of its proper divisors (1).

7149446669 is an equidigital number, since it uses as much as digits as its factorization.

7149446669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7838208, while the sum is 56.

The square root of 7149446669 is about 84554.4006483400. The cubic root of 7149446669 is about 1926.4488261020.

The spelling of 7149446669 in words is "seven billion, one hundred forty-nine million, four hundred forty-six thousand, six hundred sixty-nine".