7820744071 has 12 divisors (see below), whose sum is σ = 9433175952. Its totient is φ = 6350677344.

The previous prime is 7820744047. The next prime is 7820744083. The reversal of 7820744071 is 1704470287.

It is not a de Polignac number, because 7820744071 - 2²⁷ = 7686526343 is a prime.

It is a super-2 number, since 2×7820744071² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7820744011) 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, 1544910 + ... + 1549963.

It is an arithmetic number, because the mean of its divisors is an integer number (786097996).

Almost surely, 2^7820744071 is an apocalyptic number.

7820744071 is a deficient number, since it is larger than the sum of its proper divisors (1612431881).

7820744071 is a wasteful number, since it uses less digits than its factorization.

7820744071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3094918 (or 3094899 counting only the distinct ones).

The product of its (nonzero) digits is 87808, while the sum is 40.

The square root of 7820744071 is about 88434.9708599488. The cubic root of 7820744071 is about 1984.9490241061.

The spelling of 7820744071 in words is "seven billion, eight hundred twenty million, seven hundred forty-four thousand, seventy-one".