74006587009 has 2 divisors, whose sum is σ = 74006587010. Its totient is φ = 74006587008.

The previous prime is 74006587007. The next prime is 74006587099. The reversal of 74006587009 is 90078560047.

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., 53408596609 + 20597990400 = 231103^2 + 143520^2 .

It is a cyclic number.

It is not a de Polignac number, because 74006587009 - 2¹ = 74006587007 is a prime.

Together with 74006587007, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 74006587009.

It is not a weakly prime, because it can be changed into another prime (74006587007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37003293504 + 37003293505.

It is an arithmetic number, because the mean of its divisors is an integer number (37003293505).

Almost surely, 2^74006587009 is an apocalyptic number.

It is an amenable number.

74006587009 is a deficient number, since it is larger than the sum of its proper divisors (1).

74006587009 is an equidigital number, since it uses as much as digits as its factorization.

74006587009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 423360, while the sum is 46.

The spelling of 74006587009 in words is "seventy-four billion, six million, five hundred eighty-seven thousand, nine".