74925308669 has 2 divisors, whose sum is σ = 74925308670. Its totient is φ = 74925308668.

The previous prime is 74925308531. The next prime is 74925308693. The reversal of 74925308669 is 96680352947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67165460569 + 7759848100 = 259163^2 + 88090^2 .

It is an emirp because it is prime and its reverse (96680352947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74925308669 - 2²⁰ = 74924260093 is a prime.

It is a super-2 number, since 2×74925308669² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74925308699) 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, 37462654334 + 37462654335.

It is an arithmetic number, because the mean of its divisors is an integer number (37462654335).

Almost surely, 2^74925308669 is an apocalyptic number.

It is an amenable number.

74925308669 is a deficient number, since it is larger than the sum of its proper divisors (1).

74925308669 is an equidigital number, since it uses as much as digits as its factorization.

74925308669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19595520, while the sum is 59.

The spelling of 74925308669 in words is "seventy-four billion, nine hundred twenty-five million, three hundred eight thousand, six hundred sixty-nine".