15230345324549 has 2 divisors, whose sum is σ = 15230345324550. Its totient is φ = 15230345324548.

The previous prime is 15230345324527. The next prime is 15230345324629. The reversal of 15230345324549 is 94542354303251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8600183816449 + 6630161508100 = 2932607^2 + 2574910^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15230345324549 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 15230345324497 and 15230345324506.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15230345321549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7615172662274 + 7615172662275.

It is an arithmetic number, because the mean of its divisors is an integer number (7615172662275).

Almost surely, 2^{15230345324549} is an apocalyptic number.

It is an amenable number.

15230345324549 is a deficient number, since it is larger than the sum of its proper divisors (1).

15230345324549 is an equidigital number, since it uses as much as digits as its factorization.

15230345324549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776000, while the sum is 50.

The spelling of 15230345324549 in words is "fifteen trillion, two hundred thirty billion, three hundred forty-five million, three hundred twenty-four thousand, five hundred forty-nine".