7668650453 has 4 divisors (see below), whose sum is σ = 7677791520. Its totient is φ = 7659509388.

The previous prime is 7668650449. The next prime is 7668650459. The reversal of 7668650453 is 3540568667.

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, and also an emirpimes, since its reverse is a distinct semiprime: 3540568667 = 20201 ⋅175267.

It is a cyclic number.

It is not a de Polignac number, because 7668650453 - 2² = 7668650449 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7668650459) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4569275 + ... + 4570952.

It is an arithmetic number, because the mean of its divisors is an integer number (1919447880).

Almost surely, 2^7668650453 is an apocalyptic number.

It is an amenable number.

7668650453 is a deficient number, since it is larger than the sum of its proper divisors (9141067).

7668650453 is an equidigital number, since it uses as much as digits as its factorization.

7668650453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9141066.

The product of its (nonzero) digits is 3628800, while the sum is 50.

The square root of 7668650453 is about 87570.8310626318. The cubic root of 7668650453 is about 1971.9972917804.

The spelling of 7668650453 in words is "seven billion, six hundred sixty-eight million, six hundred fifty thousand, four hundred fifty-three".