15234448813 has 2 divisors, whose sum is σ = 15234448814. Its totient is φ = 15234448812.

The previous prime is 15234448777. The next prime is 15234448829. The reversal of 15234448813 is 31884443251.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10896645769 + 4337803044 = 104387^2 + 65862^2 .

It is a cyclic number.

It is not a de Polignac number, because 15234448813 - 2⁹ = 15234448301 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 15234448813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15234448883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7617224406 + 7617224407.

It is an arithmetic number, because the mean of its divisors is an integer number (7617224407).

Almost surely, 2^15234448813 is an apocalyptic number.

It is an amenable number.

15234448813 is a deficient number, since it is larger than the sum of its proper divisors (1).

15234448813 is an equidigital number, since it uses as much as digits as its factorization.

15234448813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 368640, while the sum is 43.

The spelling of 15234448813 in words is "fifteen billion, two hundred thirty-four million, four hundred forty-eight thousand, eight hundred thirteen".