7409503681 has 2 divisors, whose sum is σ = 7409503682. Its totient is φ = 7409503680.

The previous prime is 7409503679. The next prime is 7409503691. The reversal of 7409503681 is 1863059047.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4594670656 + 2814833025 = 67784^2 + 53055^2 .

It is a cyclic number.

It is not a de Polignac number, because 7409503681 - 2¹ = 7409503679 is a prime.

It is a super-2 number, since 2×7409503681² (a number of 21 digits) contains 22 as substring.

Together with 7409503679, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7409503631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3704751840 + 3704751841.

It is an arithmetic number, because the mean of its divisors is an integer number (3704751841).

Almost surely, 2^7409503681 is an apocalyptic number.

It is an amenable number.

7409503681 is a deficient number, since it is larger than the sum of its proper divisors (1).

7409503681 is an equidigital number, since it uses as much as digits as its factorization.

7409503681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 7409503681 is about 86078.4739699770. The cubic root of 7409503681 is about 1949.5290277000.

The spelling of 7409503681 in words is "seven billion, four hundred nine million, five hundred three thousand, six hundred eighty-one".