2049913789529 has 2 divisors, whose sum is σ = 2049913789530. Its totient is φ = 2049913789528.

The previous prime is 2049913789519. The next prime is 2049913789537. The reversal of 2049913789529 is 9259873199402.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2049913789504 + 25 = 1431752^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2049913789529 is a prime.

It is a super-2 number, since 2×2049913789529² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2049913789519) 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, 1024956894764 + 1024956894765.

It is an arithmetic number, because the mean of its divisors is an integer number (1024956894765).

Almost surely, 2^{2049913789529} is an apocalyptic number.

It is an amenable number.

2049913789529 is a deficient number, since it is larger than the sum of its proper divisors (1).

2049913789529 is an equidigital number, since it uses as much as digits as its factorization.

2049913789529 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 88179840, while the sum is 68.

The spelling of 2049913789529 in words is "two trillion, forty-nine billion, nine hundred thirteen million, seven hundred eighty-nine thousand, five hundred twenty-nine".