7492492507909 has 2 divisors, whose sum is σ = 7492492507910. Its totient is φ = 7492492507908.

The previous prime is 7492492507897. The next prime is 7492492507931. The reversal of 7492492507909 is 9097052942947.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6776894943009 + 715597564900 = 2603247^2 + 845930^2 .

It is a cyclic number.

It is not a de Polignac number, because 7492492507909 - 2²⁵ = 7492458953477 is a prime.

It is a super-2 number, since 2×7492492507909² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7492492547909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3746246253954 + 3746246253955.

It is an arithmetic number, because the mean of its divisors is an integer number (3746246253955).

Almost surely, 2^{7492492507909} is an apocalyptic number.

It is an amenable number.

7492492507909 is a deficient number, since it is larger than the sum of its proper divisors (1).

7492492507909 is an equidigital number, since it uses as much as digits as its factorization.

7492492507909 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 102876480, while the sum is 67.

The spelling of 7492492507909 in words is "seven trillion, four hundred ninety-two billion, four hundred ninety-two million, five hundred seven thousand, nine hundred nine".