7918340783 has 4 divisors (see below), whose sum is σ = 8111471088. Its totient is φ = 7725210480.

The previous prime is 7918340779. The next prime is 7918340791. The reversal of 7918340783 is 3870438197.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3870438197 = 601 ⋅6439997.

It is a cyclic number.

It is not a de Polignac number, because 7918340783 - 2² = 7918340779 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7918340753) 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, 96565091 + ... + 96565172.

It is an arithmetic number, because the mean of its divisors is an integer number (2027867772).

Almost surely, 2^7918340783 is an apocalyptic number.

7918340783 is a deficient number, since it is larger than the sum of its proper divisors (193130305).

7918340783 is a wasteful number, since it uses less digits than its factorization.

7918340783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193130304.

The product of its (nonzero) digits is 1016064, while the sum is 50.

The square root of 7918340783 is about 88985.0593245855. The cubic root of 7918340783 is about 1993.1717794825.

The spelling of 7918340783 in words is "seven billion, nine hundred eighteen million, three hundred forty thousand, seven hundred eighty-three".