7461837281 has 2 divisors, whose sum is σ = 7461837282. Its totient is φ = 7461837280.

The previous prime is 7461837247. The next prime is 7461837287. The reversal of 7461837281 is 1827381647.

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., 4841933056 + 2619904225 = 69584^2 + 51185^2 .

It is a cyclic number.

It is not a de Polignac number, because 7461837281 - 2¹⁰ = 7461836257 is a prime.

It is a super-2 number, since 2×7461837281² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7461837287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3730918640 + 3730918641.

It is an arithmetic number, because the mean of its divisors is an integer number (3730918641).

Almost surely, 2^7461837281 is an apocalyptic number.

It is an amenable number.

7461837281 is a deficient number, since it is larger than the sum of its proper divisors (1).

7461837281 is an equidigital number, since it uses as much as digits as its factorization.

7461837281 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 451584, while the sum is 47.

The square root of 7461837281 is about 86381.9268192138. The cubic root of 7461837281 is about 1954.1081291105.

The spelling of 7461837281 in words is "seven billion, four hundred sixty-one million, eight hundred thirty-seven thousand, two hundred eighty-one".