7468668661 has 2 divisors, whose sum is σ = 7468668662. Its totient is φ = 7468668660.

The previous prime is 7468668643. The next prime is 7468668679. The reversal of 7468668661 is 1668668647.

It is a balanced prime because it is at equal distance from previous prime (7468668643) and next prime (7468668679).

It can be written as a sum of positive squares in only one way, i.e., 7375546161 + 93122500 = 85881^2 + 9650^2 .

It is a cyclic number.

It is not a de Polignac number, because 7468668661 - 2⁷ = 7468668533 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7468668596 and 7468668605.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7468668161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3734334330 + 3734334331.

It is an arithmetic number, because the mean of its divisors is an integer number (3734334331).

Almost surely, 2^7468668661 is an apocalyptic number.

It is an amenable number.

7468668661 is a deficient number, since it is larger than the sum of its proper divisors (1).

7468668661 is an equidigital number, since it uses as much as digits as its factorization.

7468668661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13934592, while the sum is 58.

The square root of 7468668661 is about 86421.4594935772. The cubic root of 7468668661 is about 1954.7042818171.

The spelling of 7468668661 in words is "seven billion, four hundred sixty-eight million, six hundred sixty-eight thousand, six hundred sixty-one".