15400846238489 has 2 divisors, whose sum is σ = 15400846238490. Its totient is φ = 15400846238488.

The previous prime is 15400846238473. The next prime is 15400846238537. The reversal of 15400846238489 is 98483264800451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14736078337600 + 664767900889 = 3838760^2 + 815333^2 .

It is a cyclic number.

It is not a de Polignac number, because 15400846238489 - 2⁴ = 15400846238473 is a prime.

It is not a weakly prime, because it can be changed into another prime (15400846238689) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7700423119244 + 7700423119245.

It is an arithmetic number, because the mean of its divisors is an integer number (7700423119245).

Almost surely, 2^{15400846238489} is an apocalyptic number.

It is an amenable number.

15400846238489 is a deficient number, since it is larger than the sum of its proper divisors (1).

15400846238489 is an equidigital number, since it uses as much as digits as its factorization.

15400846238489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 53084160, while the sum is 62.

The spelling of 15400846238489 in words is "fifteen trillion, four hundred billion, eight hundred forty-six million, two hundred thirty-eight thousand, four hundred eighty-nine".