2149271285989 has 2 divisors, whose sum is σ = 2149271285990. Its totient is φ = 2149271285988.

The previous prime is 2149271285969. The next prime is 2149271286047. The reversal of 2149271285989 is 9895821729412.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2146767084225 + 2504201764 = 1465185^2 + 50042^2 .

It is a cyclic number.

It is not a de Polignac number, because 2149271285989 - 2²³ = 2149262897381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2149271285929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1074635642994 + 1074635642995.

It is an arithmetic number, because the mean of its divisors is an integer number (1074635642995).

Almost surely, 2^{2149271285989} is an apocalyptic number.

It is an amenable number.

2149271285989 is a deficient number, since it is larger than the sum of its proper divisors (1).

2149271285989 is an equidigital number, since it uses as much as digits as its factorization.

2149271285989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52254720, while the sum is 67.

The spelling of 2149271285989 in words is "two trillion, one hundred forty-nine billion, two hundred seventy-one million, two hundred eighty-five thousand, nine hundred eighty-nine".