7182919929409 has 9 divisors (see below), whose sum is σ = 8355663374241. Its totient is φ = 6156772430340.

The previous prime is 7182919929371. The next prime is 7182919929439. The reversal of 7182919929409 is 9049299192817.

The square root of 7182919929409 is 2680097.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 7182919929409 - 2⁷ = 7182919929281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7182919929439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 18569244 + ... + 18952114.

Almost surely, 2^{7182919929409} is an apocalyptic number.

7182919929409 is the 2680097-th square number.

7182919929409 is the 1340049-th centered octagonal number.

It is an amenable number.

7182919929409 is a deficient number, since it is larger than the sum of its proper divisors (1172743444832).

7182919929409 is an frugal number, since it uses more digits than its factorization.

7182919929409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765756 (or 382878 counting only the distinct ones).

The product of its (nonzero) digits is 52907904, while the sum is 70.

The spelling of 7182919929409 in words is "seven trillion, one hundred eighty-two billion, nine hundred nineteen million, nine hundred twenty-nine thousand, four hundred nine".