1019449128129 has 16 divisors (see below), whose sum is σ = 1381594012800. Its totient is φ = 668469231360.

The previous prime is 1019449128067. The next prime is 1019449128199. The reversal of 1019449128129 is 9218219449101.

It is not a de Polignac number, because 1019449128129 - 2²⁹ = 1018912257217 is a prime.

It is a super-3 number, since 3×1019449128129³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1019449128199) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6963724 + ... + 7108610.

It is an arithmetic number, because the mean of its divisors is an integer number (86349625800).

Almost surely, 2^{1019449128129} is an apocalyptic number.

It is an amenable number.

1019449128129 is a deficient number, since it is larger than the sum of its proper divisors (362144884671).

1019449128129 is a wasteful number, since it uses less digits than its factorization.

1019449128129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183400.

The product of its (nonzero) digits is 373248, while the sum is 51.

The spelling of 1019449128129 in words is "one trillion, nineteen billion, four hundred forty-nine million, one hundred twenty-eight thousand, one hundred twenty-nine".