15089782442981 has 2 divisors, whose sum is σ = 15089782442982. Its totient is φ = 15089782442980.

The previous prime is 15089782442927. The next prime is 15089782443079. The reversal of 15089782442981 is 18924428798051.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11691161146756 + 3398621296225 = 3419234^2 + 1843535^2 .

It is a cyclic number.

It is not a de Polignac number, because 15089782442981 - 2¹⁴ = 15089782426597 is a prime.

It is a super-2 number, since 2×15089782442981² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15089782442921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7544891221490 + 7544891221491.

It is an arithmetic number, because the mean of its divisors is an integer number (7544891221491).

Almost surely, 2^{15089782442981} is an apocalyptic number.

It is an amenable number.

15089782442981 is a deficient number, since it is larger than the sum of its proper divisors (1).

15089782442981 is an equidigital number, since it uses as much as digits as its factorization.

15089782442981 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92897280, while the sum is 68.

The spelling of 15089782442981 in words is "fifteen trillion, eighty-nine billion, seven hundred eighty-two million, four hundred forty-two thousand, nine hundred eighty-one".