7507668913 has 2 divisors, whose sum is σ = 7507668914. Its totient is φ = 7507668912.

The previous prime is 7507668907. The next prime is 7507668937. The reversal of 7507668913 is 3198667057.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5316305569 + 2191363344 = 72913^2 + 46812^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7507668913 is a prime.

It is a super-3 number, since 3×7507668913³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (7507668983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3753834456 + 3753834457.

It is an arithmetic number, because the mean of its divisors is an integer number (3753834457).

Almost surely, 2^7507668913 is an apocalyptic number.

It is an amenable number.

7507668913 is a deficient number, since it is larger than the sum of its proper divisors (1).

7507668913 is an equidigital number, since it uses as much as digits as its factorization.

7507668913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1905120, while the sum is 52.

The square root of 7507668913 is about 86646.8055556580. The cubic root of 7507668913 is about 1958.1007661883.

The spelling of 7507668913 in words is "seven billion, five hundred seven million, six hundred sixty-eight thousand, nine hundred thirteen".