7640009093 has 2 divisors, whose sum is σ = 7640009094. Its totient is φ = 7640009092.

The previous prime is 7640009071. The next prime is 7640009099. The reversal of 7640009093 is 3909000467.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7538059684 + 101949409 = 86822^2 + 10097^2 .

It is an emirp because it is prime and its reverse (3909000467) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7640009093 - 2¹⁴ = 7639992709 is a prime.

It is a super-2 number, since 2×7640009093² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7640009099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3820004546 + 3820004547.

It is an arithmetic number, because the mean of its divisors is an integer number (3820004547).

Almost surely, 2^7640009093 is an apocalyptic number.

It is an amenable number.

7640009093 is a deficient number, since it is larger than the sum of its proper divisors (1).

7640009093 is an equidigital number, since it uses as much as digits as its factorization.

7640009093 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 40824, while the sum is 38.

The square root of 7640009093 is about 87407.1455488623. The cubic root of 7640009093 is about 1969.5391823282.

The spelling of 7640009093 in words is "seven billion, six hundred forty million, nine thousand, ninety-three".