1949126668793 has 48 divisors (see below), whose sum is σ = 2204403626880. Its totient is φ = 1718104006656.

The previous prime is 1949126668787. The next prime is 1949126668807. The reversal of 1949126668793 is 3978666219491.

It is not a de Polignac number, because 1949126668793 - 2⁶ = 1949126668729 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1949126668703) 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 in 47 ways as a sum of consecutive naturals, for example, 728099771 + ... + 728102447.

It is an arithmetic number, because the mean of its divisors is an integer number (45925075560).

Almost surely, 2^{1949126668793} is an apocalyptic number.

It is an amenable number.

1949126668793 is a deficient number, since it is larger than the sum of its proper divisors (255276958087).

1949126668793 is a wasteful number, since it uses less digits than its factorization.

1949126668793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4194 (or 4177 counting only the distinct ones).

The product of its digits is 211631616, while the sum is 71.

The spelling of 1949126668793 in words is "one trillion, nine hundred forty-nine billion, one hundred twenty-six million, six hundred sixty-eight thousand, seven hundred ninety-three".