74488736009 has 2 divisors, whose sum is σ = 74488736010. Its totient is φ = 74488736008.

The previous prime is 74488735949. The next prime is 74488736011. The reversal of 74488736009 is 90063788447.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52714782409 + 21773953600 = 229597^2 + 147560^2 .

It is a cyclic number.

It is not a de Polignac number, because 74488736009 - 2²⁴ = 74471958793 is a prime.

Together with 74488736011, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (74488736039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37244368004 + 37244368005.

It is an arithmetic number, because the mean of its divisors is an integer number (37244368005).

Almost surely, 2^74488736009 is an apocalyptic number.

It is an amenable number.

74488736009 is a deficient number, since it is larger than the sum of its proper divisors (1).

74488736009 is an equidigital number, since it uses as much as digits as its factorization.

74488736009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8128512, while the sum is 56.

The spelling of 74488736009 in words is "seventy-four billion, four hundred eighty-eight million, seven hundred thirty-six thousand, nine".