7944093873 has 10 divisors (see below), whose sum is σ = 11867103314. Its totient is φ = 5296062528.

The previous prime is 7944093869. The next prime is 7944093887. The reversal of 7944093873 is 3783904497.

It can be written as a sum of positive squares in only one way, i.e., 4837480704 + 3106613169 = 69552^2 + 55737^2 .

It is not a de Polignac number, because 7944093873 - 2² = 7944093869 is a prime.

It is a super-2 number, since 2×7944093873² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7944093373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 49037536 + ... + 49037697.

Almost surely, 2^7944093873 is an apocalyptic number.

It is an amenable number.

7944093873 is a deficient number, since it is larger than the sum of its proper divisors (3923009441).

7944093873 is an equidigital number, since it uses as much as digits as its factorization.

7944093873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98075245 (or 98075236 counting only the distinct ones).

The product of its (nonzero) digits is 4572288, while the sum is 54.

The square root of 7944093873 is about 89129.6464314764. The cubic root of 7944093873 is about 1995.3302613396.

The spelling of 7944093873 in words is "seven billion, nine hundred forty-four million, ninety-three thousand, eight hundred seventy-three".