973773981849 has 4 divisors (see below), whose sum is σ = 1298365309136. Its totient is φ = 649182654564.

The previous prime is 973773981811. The next prime is 973773981881. The reversal of 973773981849 is 948189377379.

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 973773981849 - 2⁷ = 973773981721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (973773981949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 162295663639 + ... + 162295663644.

It is an arithmetic number, because the mean of its divisors is an integer number (324591327284).

Almost surely, 2^973773981849 is an apocalyptic number.

It is an amenable number.

973773981849 is a deficient number, since it is larger than the sum of its proper divisors (324591327287).

973773981849 is a wasteful number, since it uses less digits than its factorization.

973773981849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324591327286.

The product of its digits is 576108288, while the sum is 75.

The spelling of 973773981849 in words is "nine hundred seventy-three billion, seven hundred seventy-three million, nine hundred eighty-one thousand, eight hundred forty-nine".