7620245489 has 2 divisors, whose sum is σ = 7620245490. Its totient is φ = 7620245488.

The previous prime is 7620245419. The next prime is 7620245531. The reversal of 7620245489 is 9845420267.

7620245489 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5392405489 + 2227840000 = 73433^2 + 47200^2 .

It is a cyclic number.

It is not a de Polignac number, because 7620245489 - 2¹² = 7620241393 is a prime.

It is not a weakly prime, because it can be changed into another prime (7620245419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3810122744 + 3810122745.

It is an arithmetic number, because the mean of its divisors is an integer number (3810122745).

Almost surely, 2^7620245489 is an apocalyptic number.

It is an amenable number.

7620245489 is a deficient number, since it is larger than the sum of its proper divisors (1).

7620245489 is an equidigital number, since it uses as much as digits as its factorization.

7620245489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 47.

The square root of 7620245489 is about 87294.0174868817. The cubic root of 7620245489 is about 1967.8394109914.

The spelling of 7620245489 in words is "seven billion, six hundred twenty million, two hundred forty-five thousand, four hundred eighty-nine".