7924241890009 has 3 divisors (see below), whose sum is σ = 7924244705013. Its totient is φ = 7924239075006.

The previous prime is 7924241889983. The next prime is 7924241890021. The reversal of 7924241890009 is 9000981424297.

It is a happy number.

The square root of 7924241890009 is 2815003.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 7924241890009 - 2³¹ = 7922094406361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7924241890109) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1407502 + ... + 4222504.

It is an arithmetic number, because the mean of its divisors is an integer number (2641414901671).

Almost surely, 2^{7924241890009} is an apocalyptic number.

7924241890009 is the 2815003-rd square number.

7924241890009 is the 1407502-nd centered octagonal number.

It is an amenable number.

7924241890009 is a deficient number, since it is larger than the sum of its proper divisors (2815004).

7924241890009 is an frugal number, since it uses more digits than its factorization.

7924241890009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5630006 (or 2815003 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 55.

The spelling of 7924241890009 in words is "seven trillion, nine hundred twenty-four billion, two hundred forty-one million, eight hundred ninety thousand, nine".