15009621073 has 2 divisors, whose sum is σ = 15009621074. Its totient is φ = 15009621072.

The previous prime is 15009621071. The next prime is 15009621139. The reversal of 15009621073 is 37012690051.

15009621073 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14484844609 + 524776464 = 120353^2 + 22908^2 .

It is a cyclic number.

It is not a de Polignac number, because 15009621073 - 2¹ = 15009621071 is a prime.

Together with 15009621071, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (15009621071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7504810536 + 7504810537.

It is an arithmetic number, because the mean of its divisors is an integer number (7504810537).

Almost surely, 2^15009621073 is an apocalyptic number.

It is an amenable number.

15009621073 is a deficient number, since it is larger than the sum of its proper divisors (1).

15009621073 is an equidigital number, since it uses as much as digits as its factorization.

15009621073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 34.

The spelling of 15009621073 in words is "fifteen billion, nine million, six hundred twenty-one thousand, seventy-three".