7785933778223 has 4 divisors (see below), whose sum is σ = 7791344435520. Its totient is φ = 7780523120928.

The previous prime is 7785933778187. The next prime is 7785933778279. The reversal of 7785933778223 is 3228773395877.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 7785933778223 - 2⁸ = 7785933777967 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 (7785933078223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2705326490 + ... + 2705329367.

It is an arithmetic number, because the mean of its divisors is an integer number (1947836108880).

Almost surely, 2^{7785933778223} is an apocalyptic number.

7785933778223 is a deficient number, since it is larger than the sum of its proper divisors (5410657297).

7785933778223 is a wasteful number, since it uses less digits than its factorization.

7785933778223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5410657296.

The product of its digits is 746807040, while the sum is 71.

The spelling of 7785933778223 in words is "seven trillion, seven hundred eighty-five billion, nine hundred thirty-three million, seven hundred seventy-eight thousand, two hundred twenty-three".