15310138643 has 2 divisors, whose sum is σ = 15310138644. Its totient is φ = 15310138642.

The previous prime is 15310138607. The next prime is 15310138651. The reversal of 15310138643 is 34683101351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 15310138643 - 2²⁶ = 15243029779 is a prime.

It is not a weakly prime, because it can be changed into another prime (15310138843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7655069321 + 7655069322.

It is an arithmetic number, because the mean of its divisors is an integer number (7655069322).

Almost surely, 2^15310138643 is an apocalyptic number.

15310138643 is a deficient number, since it is larger than the sum of its proper divisors (1).

15310138643 is an equidigital number, since it uses as much as digits as its factorization.

15310138643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

Adding to 15310138643 its reverse (34683101351), we get a palindrome (49993239994).

The spelling of 15310138643 in words is "fifteen billion, three hundred ten million, one hundred thirty-eight thousand, six hundred forty-three".