7290665461 has 2 divisors, whose sum is σ = 7290665462. Its totient is φ = 7290665460.

The previous prime is 7290665449. The next prime is 7290665471. The reversal of 7290665461 is 1645660927.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7158852100 + 131813361 = 84610^2 + 11481^2 .

It is a cyclic number.

It is not a de Polignac number, because 7290665461 - 2⁵ = 7290665429 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7290665401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3645332730 + 3645332731.

It is an arithmetic number, because the mean of its divisors is an integer number (3645332731).

Almost surely, 2^7290665461 is an apocalyptic number.

It is an amenable number.

7290665461 is a deficient number, since it is larger than the sum of its proper divisors (1).

7290665461 is an equidigital number, since it uses as much as digits as its factorization.

7290665461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 46.

The square root of 7290665461 is about 85385.3937216430. The cubic root of 7290665461 is about 1939.0502189152.

The spelling of 7290665461 in words is "seven billion, two hundred ninety million, six hundred sixty-five thousand, four hundred sixty-one".