1949244173841 has 4 divisors (see below), whose sum is σ = 2598992231792. Its totient is φ = 1299496115892.

The previous prime is 1949244173839. The next prime is 1949244173857. The reversal of 1949244173841 is 1483714429491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1949244173841 - 2¹ = 1949244173839 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1949244173861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324874028971 + ... + 324874028976.

It is an arithmetic number, because the mean of its divisors is an integer number (649748057948).

Almost surely, 2^{1949244173841} is an apocalyptic number.

It is an amenable number.

1949244173841 is a deficient number, since it is larger than the sum of its proper divisors (649748057951).

1949244173841 is an equidigital number, since it uses as much as digits as its factorization.

1949244173841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649748057950.

The product of its digits is 6967296, while the sum is 57.

The spelling of 1949244173841 in words is "one trillion, nine hundred forty-nine billion, two hundred forty-four million, one hundred seventy-three thousand, eight hundred forty-one".