7624389481 has 2 divisors, whose sum is σ = 7624389482. Its totient is φ = 7624389480.

The previous prime is 7624389361. The next prime is 7624389499. The reversal of 7624389481 is 1849834267.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5320389481 + 2304000000 = 72941^2 + 48000^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7624389481 is a prime.

It is a super-2 number, since 2×7624389481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7624389781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3812194740 + 3812194741.

It is an arithmetic number, because the mean of its divisors is an integer number (3812194741).

Almost surely, 2^7624389481 is an apocalyptic number.

It is an amenable number.

7624389481 is a deficient number, since it is larger than the sum of its proper divisors (1).

7624389481 is an equidigital number, since it uses as much as digits as its factorization.

7624389481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2322432, while the sum is 52.

The square root of 7624389481 is about 87317.7500912615. The cubic root of 7624389481 is about 1968.1960588632.

The spelling of 7624389481 in words is "seven billion, six hundred twenty-four million, three hundred eighty-nine thousand, four hundred eighty-one".