7644462461 has 2 divisors, whose sum is σ = 7644462462. Its totient is φ = 7644462460.

The previous prime is 7644462421. The next prime is 7644462467. The reversal of 7644462461 is 1642644467.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4440223225 + 3204239236 = 66635^2 + 56606^2 .

It is a cyclic number.

It is not a de Polignac number, because 7644462461 - 2¹⁴ = 7644446077 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7644462467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3822231230 + 3822231231.

It is an arithmetic number, because the mean of its divisors is an integer number (3822231231).

Almost surely, 2^7644462461 is an apocalyptic number.

It is an amenable number.

7644462461 is a deficient number, since it is larger than the sum of its proper divisors (1).

7644462461 is an equidigital number, since it uses as much as digits as its factorization.

7644462461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 774144, while the sum is 44.

The square root of 7644462461 is about 87432.6166885105. The cubic root of 7644462461 is about 1969.9217900358.

The spelling of 7644462461 in words is "seven billion, six hundred forty-four million, four hundred sixty-two thousand, four hundred sixty-one".