15013890709 has 2 divisors, whose sum is σ = 15013890710. Its totient is φ = 15013890708.

The previous prime is 15013890637. The next prime is 15013890797. The reversal of 15013890709 is 90709831051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11713732900 + 3300157809 = 108230^2 + 57447^2 .

It is a cyclic number.

It is not a de Polignac number, because 15013890709 - 2¹¹ = 15013888661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15013890109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7506945354 + 7506945355.

It is an arithmetic number, because the mean of its divisors is an integer number (7506945355).

Almost surely, 2^15013890709 is an apocalyptic number.

It is an amenable number.

15013890709 is a deficient number, since it is larger than the sum of its proper divisors (1).

15013890709 is an equidigital number, since it uses as much as digits as its factorization.

15013890709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 68040, while the sum is 43.

The spelling of 15013890709 in words is "fifteen billion, thirteen million, eight hundred ninety thousand, seven hundred nine".