15212132342389 has 2 divisors, whose sum is σ = 15212132342390. Its totient is φ = 15212132342388.

The previous prime is 15212132342377. The next prime is 15212132342447. The reversal of 15212132342389 is 98324323121251.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14142428252164 + 1069704090225 = 3760642^2 + 1034265^2 .

It is a cyclic number.

It is not a de Polignac number, because 15212132342389 - 2¹¹ = 15212132340341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15212132342359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606066171194 + 7606066171195.

It is an arithmetic number, because the mean of its divisors is an integer number (7606066171195).

Almost surely, 2^{15212132342389} is an apocalyptic number.

It is an amenable number.

15212132342389 is a deficient number, since it is larger than the sum of its proper divisors (1).

15212132342389 is an equidigital number, since it uses as much as digits as its factorization.

15212132342389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 622080, while the sum is 46.

The spelling of 15212132342389 in words is "fifteen trillion, two hundred twelve billion, one hundred thirty-two million, three hundred forty-two thousand, three hundred eighty-nine".