6293407661 has 2 divisors, whose sum is σ = 6293407662. Its totient is φ = 6293407660.

The previous prime is 6293407621. The next prime is 6293407697. The reversal of 6293407661 is 1667043926.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6293407561 + 100 = 79331^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 6293407661 - 2¹⁴ = 6293391277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6293407621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3146703830 + 3146703831.

It is an arithmetic number, because the mean of its divisors is an integer number (3146703831).

Almost surely, 2^6293407661 is an apocalyptic number.

It is an amenable number.

6293407661 is a deficient number, since it is larger than the sum of its proper divisors (1).

6293407661 is an equidigital number, since it uses as much as digits as its factorization.

6293407661 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 326592, while the sum is 44.

The square root of 6293407661 is about 79331.0006302706. Note that the first 3 decimals coincide. The cubic root of 6293407661 is about 1846.2703198959.

The spelling of 6293407661 in words is "six billion, two hundred ninety-three million, four hundred seven thousand, six hundred sixty-one".