7991055743 has 12 divisors (see below), whose sum is σ = 8811841584. Its totient is φ = 7241203200.

The previous prime is 7991055733. The next prime is 7991055767. The reversal of 7991055743 is 3475501997.

It is not a de Polignac number, because 7991055743 - 2⁶ = 7991055679 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7991055691 and 7991055700.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7991055733) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 68546 + ... + 143807.

It is an arithmetic number, because the mean of its divisors is an integer number (734320132).

Almost surely, 2^7991055743 is an apocalyptic number.

7991055743 is a deficient number, since it is larger than the sum of its proper divisors (820785841).

7991055743 is a wasteful number, since it uses less digits than its factorization.

7991055743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 212686 (or 212675 counting only the distinct ones).

The product of its (nonzero) digits is 1190700, while the sum is 50.

The square root of 7991055743 is about 89392.7052001448. The cubic root of 7991055743 is about 1999.2543673005.

The spelling of 7991055743 in words is "seven billion, nine hundred ninety-one million, fifty-five thousand, seven hundred forty-three".